当心你事
Mind your business
以上为机器翻译结果，长、整句建议使用 人工翻译 。
当心你不要作这种事，丁太太！
Take care you do no such thing, Mrs Dean!
youdao
有一件事你要当心，那就是起动时要平稳。
One thing you want to be careful about, and that is to start easy.
也就是说：看这视频时如果你岁数够大，那就可以少当心一件事了。
Which means: if you're old enough to be watching this video. you probably have one less thing to worry about.
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