该句用来在紧急情况下提醒别人注意。也可以说 "watch out"。 1. Look out! There's a car coming! 小心!有辆车来了! 2. Look out! You could fall off the edge here. 当心!你别从边上掉下去。 3. Look out, Harry, that step's not safe! 当心,哈利,那个台阶不安全! A: Look out! A small boy is rushing out blindly. 注意!一个小孩乱跑出来了。 B: Gee, how dangerous! I've almost knocked him down. 哎呀,好险啊!我差一点撞倒他。 A: You stopped just in time. Good for you! 你停得及时。太好了。 B: I braked as hard as I could. 我拼命地刹车。