bealock

例句：

1. 2.
   尤指
2. 1.He locked the door securely before leaving.
   他离开前把门锁得严严实实的。
3. 2. The lock on the safe was broken.
   保险箱上的锁坏了。
4. 3. She had to fasten her seat belt before taking off.
   起飞前她不得不系好安全带。