事故发生在一个雨天。

The accident happened on a rainy day.

Source: Tatoeba

Sentence Composition

1 事故 shìgù accident

classifiers: 樁, 起, 次
2 发生 fāshēng to happen; to occur; to take place; to break out
3 在 zài
  1. to exist; to be alive
  2. (of sb or sth) to be (located) at
  3. (used before a verb to indicate an action in progress)
=4 一个 yīge
  1. a; an; one
  2. the whole (afternoon, summer vacation etc)
=4 一个 yīgè
  1. Combination of the numeral 一 (“one”) and the generic classifier 個／个: a; an; one
  2. same
5 雨天 yǔtiān
  1. rainy day
  2. rainy weather