把首字母l换成字母d，变成新单词duck，意思是：n.鸭子鸭鸭肉母鸭乖乖，宝贝儿零分。v.低下头，弯下身(以免被打中或看见)躲闪躲避迅速行进，飞快行走(以免被看见)逃避，回避，推脱，推诿（职责或责任）把…按入水中。
例句： cat was now within striking distance of the duck.
此时，猫就在可攻击鸭子的距离内。
2、A duck's feathers shed water immediately.
鸭子的羽毛不沾水。
3、We ducked down behind the wall so they wouldn't see us.
我们弓身躲在墙后不让他们看见。
