点击下方单词,选择对的这个单词
ph.
1. take position in the rear, as in a military formation or in the line of scrimmage in football
e.g. The defender dropped back behind his teammate
2. to lag or linger behind
e.g. But in so many other areas we still are dragging
Synonym: dragtrailget behindhang backdrop behind
多通过句子记忆单词，而不是单独死记硬背。
