[Bug]: multi_language.py translate error

### Installation Method | 安装方法与平台

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### Describe the bug | 简述

i got this error when i run script: multi_language.py", line 352, in step_1_core_key_translate
chinese_core_keys_norepeat_mapping.update({k:cached_translation[k]})
~~~~~~~~~~~~~~~~~~^^^
KeyError: '注释Python项目'

### Screen Shot | 有帮助的截图

i got this error when i run script: multi_language.py", line 352, in step_1_core_key_translate
chinese_core_keys_norepeat_mapping.update({k:cached_translation[k]})
~~~~~~~~~~~~~~~~~~^^^
KeyError: '注释Python项目'

### Terminal Traceback & Material to Help Reproduce Bugs | 终端traceback（如有） + 帮助我们复现的测试材料样本（如有）

i got this error when i run script: multi_language.py", line 352, in step_1_core_key_translate
chinese_core_keys_norepeat_mapping.update({k:cached_translation[k]})
~~~~~~~~~~~~~~~~~~^^^
KeyError: '注释Python项目'

Start in multi_language.py at step_1_core_key_translate around line 352 and trace how cached_translation is populated before the lookup for '注释Python项目'. Reproduce the reported KeyError if possible, then verify that translation processing handles this missing key without failing and add coverage for the case.

Written by the indexing model from the issue text.