我们鼓励不时变换饮食。You are welcome to vary the diet.舵手独自一人就能变换航向。The helmsman could tack the boat singlehanded.他从水平姿势变换成其他姿势。He shifted his position from the horizontal....
There're two abstracts on the wall.墙上挂着两幅抽象派画.Databases of abstracts would eventually become redundant.文摘数据库最终将成为多余.This machine abstracts salt from sea water.这台机器能从海水中提炼盐....