occur
/əˈkɝ/ 动词 B1中文： 发生
- To happen or take place. · The liftoff will occur in exactly twelve seconds.
- To present or offer itself. · I will write if the opportunity occurs.
- To come or be presented to the mind; to suggest itself. · One little incident of my school days occurs to me as amusing.· It occurred to him to tell me of the problem.
- To be present or found. · The chemical monofluoroacetate occurs in all parts of Dichapetalum cymosum, and is responsible for its toxic effects.
He/she/it occurs · 过去式 occurred · 过去分词 occurred · -ing形式 occurring
动词形式
- 原形
- occur
- He/she/it
- occurs
- 过去式
- occurred
- 过去分词
- occurred
- -ing形式
- occurring
不规则动词：要记住它的过去式和过去分词。
来自图书馆
There was a large mushroom growing near her, about the same height as herself; and when she had looked under it, and on both sides of it, and behind it, it occurred to her that she might as well look and see what was on the top of it.
One of those street blockades had occurred that sometimes tie up commerce and movement quite suddenly in the big city.
And before they could continue the blockade occurred.
I just came over to find out how the mistake had occurred.
在真实文章中学习occur
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