leave something as security for a loan

例句：

1. 1. I need to leave now before the meeting starts.
   我需要在会议开始前离开。
2. 2. The teacher left the classroom before class began.
   老师在上课前离开了教室。
3. 3. She left her home in a hurry and didn't have time to pack.
   她匆忙地离开了家，没有时间打包。