1 (often passive 常用于被动语态) to keep sb in a dangerous place or a bad situation from which he/she cannot escape 使陷入困境: The door closed behind them and they were trapped. 门在他们身后关上了，他们被困住了。Many people are trapped in low-paid jobs. 许多人受困于低薪工作。

2 to catch and keep or store sth 留住；保存: Special glass panels trap heat from the sun. 特制的玻璃板可以吸收太阳的热能。

3 to force sb/sth into a place or situation from which he/she/it cannot escape 迫使（某人或某事物）处于无法摆脱的境地: Police believe this new evidence could help trap the killer. 警方认为，这新证据会使凶手无法再抵赖。

4 to catch an animal, etc in a trap 用捕捉器捉（动物等）

5 trap sb (into sth/into doing sth) to make sb do sth by tricking him/her 骗某人（做某事）: She had been trapped into revealing her true identity. 她上当受骗，泄露了自己的真实身分。