compact code

例句：

1. 1.The car is compact enough to fit in the trunk.
   这辆车足够紧凑，可以放进后备箱。
2. 2.The compact disc player is easy to use.
   紧凑盘播放器使用起来很容易。
3. 3. The compact design of this phone makes it easy to carry around.
   这款手机紧凑的设计使得携带起来非常方便。