be careful look out 当心 ; 小心
Feiler advises, "Be careful about pointing out to people — reminding them — that they may not look good.
Feiler建议，“小心地指出，提醒病人他们看上去也许不怎么很好。
Look out! Some of those rocks are loose. Be careful where you put your feet.
当心！那些岩石中有些松了。脚踩的地方要小心。
We now serve them with this formal warning: Better be careful. This fire is not a plaything . Look out for your own skins!
我们正式警告他们说：放谨慎一点吧，这种火是不好玩的，仔细你们自己的脑袋。
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