compact operator

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 new model of the car is compact and efficient.
   这款车的新款设计紧凑且高效。
3. 3.The compact design makes it easy to carry around.
   紧凑的设计使得携带起来非常方便。