扣紧

例句：

1. 1. Please fasten the door before you leave.
   在你离开之前，请把门扣紧。
2. 2. The car was securely fastened to the trailer.
   汽车被安全地系在拖车上。
3. 3. He fastened the package securely in his bag.
   他把他那个包裹牢固地系在他的包里。