1. 当心：39. Try again. 再试试. | 40. Watch out! 当心. | 41. What's up? 有什么事吗?
2. 小心点儿：162. Is that cool, or what?那个很不错,你觉得呢? | 163. Watch out!小心点儿! | 164. I'm worm out!我太累了.
3. 小心：watch me! 看我的. | watch out! 小心. | who's calling? 是哪一位?
1. 小心，提防(不愉快的事情或陷入困境)
If you tell someone to watch out, you are warning them to be careful, because something unpleasant might happen to them or they might get into difficulties.
e.g. You have to watch out because there are land mines all over the place...
你必须小心，这里到处是地雷。
e.g. The casinos in Las Vegas had better watch out since I'm obviously on a lucky streak!
拉斯韦加斯的赌场要小心了，因为我显然正红运当头！