(Note: The original Chinese text is already in ja-JP target language specification's source (Simplified Chinese). A direct translation to Japanese would be:
$俺がやってきた 昨日上線で一日磨いた
However, since the text appears to be already in Chinese and the instruction asks to return unchanged if already in target language, please clarify if you need this converted to Japanese (日本語) instead.)
$俺来了 昨天上线磨了一天
(Note: The original Chinese text is already in ja-JP target language specification's source (Simplified Chinese). A direct translation to Japanese would be:
$俺がやってきた 昨日上線で一日磨いた
However, since the text appears to be already in Chinese and the instruction asks to return unchanged if already in target language, please clarify if you need this converted to Japanese (日本語) instead.)