n a quantity of no importance
n a code of letters and digits added to a postal address to aid in the sorting of mail
n forceful exertion
n a fastener for locking together two toothed edges by means of a sliding tab
v close with a zipper
v move very fast
n. 尖啸声, 拉链, 活力
vt. 给...以速度, 使增加活力, 拉(拉链)
vi. 有力而迅速地行动, 嘘嘘地响, 拉拉链
1. I need to zip up my jacket because it's cold outside.
我需要把夹克拉上，因为外面很冷。
2. Please zip the file and send it to me via email.
请把文件压缩并通过电子邮件发送给我。
3. The backpack has a zip pocket for keeping small items safe.
背包有一个拉链口袋，可以用来安全存放小物品。