drop astern

• v. 落后

例句

用作动词 (v.)

1. We cannot afford to drop behind our competitors.
   我们可担当不起落后于竞争对手的后果。
2. After long time from school study everytime, I can feel I become stupid because I drop behind them.
   每次很长时间不上学以后，我觉得自己笨了许多，因为比别人又落后了一些。