Becareful与lookout的区别
Becareful释义： 要小心 例句： Becareful not to hit the kids. 注意不要打孩子。 lookout释义： n. 监视；监视哨；警戒；守望者；担心的事；前景 例句： The soldiers boarded the lookout in order to detect the danger in time. 士兵登上了望台，以便及时发现危险。 词组： on the lookout for寻找；注意；警戒 be on the lookout注意......