occur

vi

• ① 发生
  • When did the accident occur?那件事故是什么时候发生的?
  • if anything should occur如果发生什么事的话
  • An accident occurred to them.一件事故发生在他们身上。

• ②[常用It occurs ... to-V, It occurs ... that ...之类的构造]想起,想到
  • Just then an idea occurred to me.就在那时,我想起了一个主意。
  • Didn't it occur to you to ask him?你没有想到问他吗?
  • It never occurred to him that she would fail.他从没想到她会失败。

• ③ 1(动植物、矿物)出现,存在2[常用于否定句](无生物)存在(于…)
  • These flowers occur in the tropics.这些花产于热带。
  • The sound [ɵ] doesn't occur in Chinese.音不存在于中国语。