生物医药大词典
英文: occur to sb.
中文: 某人突然想起......英文: Don't let this accident occur?
中文: 不要让这件事再发生。英文: How does this development occur?
中文: 这样的过程如何产生？英文: Misprints occur on every page.
中文: 每页都有印刷错误.英文: Difficulties are liable to occur.
中文: 困难可能发生。