diff --git a/scripts/README.md b/scripts/README.md
index 0a9c94e..4d8d9c4 100644
--- a/scripts/README.md
+++ b/scripts/README.md
@@ -24,6 +24,8 @@ Execute `uv run build_meshes.py`
 
 Validate the correction of BME prorotype JSON files.
 
+Validation is VERY crucial. Before running anything involving BME prototype JSONs, please validate them first.
+
 Execute `uv run validate_json.py`
 
 ## Extract BME Translation
diff --git a/scripts/extract_json.py b/scripts/extract_json.py
deleted file mode 100644
index 7bba7b7..0000000
--- a/scripts/extract_json.py
+++ /dev/null
@@ -1,6 +0,0 @@
-import common
-
-
-
-if __name__ == '__main__':
-    common.setup_logging()
diff --git a/scripts/extract_jsons.py b/scripts/extract_jsons.py
new file mode 100644
index 0000000..a2332d3
--- /dev/null
+++ b/scripts/extract_jsons.py
@@ -0,0 +1,88 @@
+import json, logging, typing, itertools
+from pathlib import Path
+import common, bme
+from common import AssetKind
+import pydantic, polib
+
+## YYC MARK:
+#  This translation context string prefix is cpoied from UTIL_translation.py.
+#  If the context string of translation changed, please synchronize it.
+
+CTX_TRANSLATION: str = 'BBP/BME'
+
+
+def _extract_prototype(prototype: bme.Prototype) -> typing.Iterator[polib.POEntry]:
+    identifier = prototype.identifier
+    showcase = prototype.showcase
+
+    # Show message
+    logging.info(f'Extracting prototype {identifier}')
+
+    # Extract showcase
+    if showcase is None:
+        return
+
+    # Extract showcase title
+    yield polib.POEntry(msgid=showcase.title, msgstr='', msgctxt=f'{CTX_TRANSLATION}/{identifier}')
+    # Extract showcase entries
+    for i, cfg in enumerate(showcase.cfgs):
+        # extract title and description
+        yield polib.POEntry(msgid=cfg.title, msgstr='', msgctxt=f'{CTX_TRANSLATION}/{identifier}/[{i}]')
+        yield polib.POEntry(msgid=cfg.desc, msgstr='', msgctxt=f'{CTX_TRANSLATION}/{identifier}/[{i}]')
+
+
+def _extract_json(json_file: Path) -> typing.Iterator[polib.POEntry]:
+    # Show message
+    logging.info(f'Extracting file {json_file}')
+
+    try:
+        # Read file and convert it into BME struct.
+        with open(json_file, 'r', encoding='utf-8') as f:
+            document = json.load(f)
+        prototypes = bme.Prototypes.model_validate(document)
+        # Extract translation
+        return itertools.chain.from_iterable(_extract_prototype(prototype) for prototype in prototypes.root)
+    except json.JSONDecodeError:
+        logging.error(f'Can not extract translation from {json_file} due to JSON error. Please validate it first.')
+    except pydantic.ValidationError:
+        logging.error(f'Can not extract translation from {json_file} due to struct error. Please validate it first.')
+
+    # Output nothing
+    return itertools.chain.from_iterable(())
+
+
+def extract_jsons() -> None:
+    raw_jsons_dir = common.get_raw_assets_folder(AssetKind.Jsons)
+
+    # Create POT content
+    po = polib.POFile()
+    po.metadata = {
+        'Project-Id-Version': '1.0',
+        'Report-Msgid-Bugs-To': 'you@example.com',
+        'POT-Creation-Date': 'YEAR-MO-DA HO:MI+ZONE',
+        'PO-Revision-Date': 'YEAR-MO-DA HO:MI+ZONE',
+        'Last-Translator': 'FULL NAME <EMAIL@ADDRESS>',
+        'Language-Team': 'LANGUAGE <LL@li.org>',
+        'MIME-Version': '1.0',
+        'Content-Type': 'text/plain; charset=utf-8',
+        'Content-Transfer-Encoding': '8bit',
+        'X-Generator': 'polib',
+    }
+
+    # Iterate all prototypes and add into POT
+    for raw_json_file in raw_jsons_dir.glob('*.json'):
+        # Skip non-file.
+        if not raw_json_file.is_file():
+            continue
+        # Extract json and append it.
+        po.extend(_extract_json(raw_json_file))
+
+    # Write into POT file
+    pot_file = common.get_root_folder() / 'i18n' / 'bme.pot'
+    logging.info(f'Saving POT into {pot_file}')
+    po.save(str(pot_file))
+
+
+if __name__ == '__main__':
+    common.setup_logging()
+    extract_jsons()
diff --git a/scripts/validate_json.py b/scripts/validate_jsons.py
similarity index 91%
rename from scripts/validate_json.py
rename to scripts/validate_jsons.py
index 369809c..8ef7aa3 100644
--- a/scripts/validate_json.py
+++ b/scripts/validate_jsons.py
@@ -1,7 +1,7 @@
 import json, logging, ast, typing
-import pydantic
 import common, bme
 from common import AssetKind
+import pydantic
 
 #region Assistant Validator
 
@@ -27,7 +27,12 @@ def _validate_prototype(prototype: bme.Prototype) -> None:
 
 #endregion
 
-def validate_json() -> None:
+# 把提取JSON翻译的要求写入到验证中：
+# - Showcase::Cfgs::Title或Desc不能为空。
+# - Showcase::Cfgs::Title和Showcase::Cfgs::Desc不能重复
+
+
+def validate_jsons() -> None:
     raw_jsons_dir = common.get_raw_assets_folder(AssetKind.Jsons)
 
     # Load all prototypes and check their basic format
@@ -68,4 +73,4 @@ def validate_json() -> None:
 
 if __name__ == '__main__':
     common.setup_logging()
-    validate_json()
+    validate_jsons()