扣得紧

例句：

1. 1. The rope was so tight that it couldn't be untied easily.
   这根绳子太紧了，不容易解开。
2. 2. The door was so locked that we couldn't open it without a key.
   门被锁得非常紧，没有钥匙我们打不开。
3. 3. The lock on the safe was so tight that even a professional could not open it.
   保险箱上的锁太紧了，即使是专业的开锁人员也无法打开。