watchful是什么意思 - watchful中文意思和解释

watchful相关例句和用法

The entrances are guarded by watchful security staff..入口处由警惕的保安人员把守。

注意的，警惕的英释adjadjvery careful to notice what is happening, and to make sure that everything is all right

真题例句...children who are watchful will be better able to stay away from Unsafe situations。