trim filter

例句：

1. 1. The gardener needs totrim the hedges every week.
   园丁每周都需要修剪篱笆。
2. 2. Shetrimmed her hair forthe party.
   她为派对修剪了头发。
3. 3. The car was so dirtythat it needed a good trim.
   这辆车太脏了，需要好好清理一下。