天要落雨，娘要嫁人

tiānyàoluòyǔ,niángyàojiàrén
  1. the rain will fall, the womenfolk will marry (idiom)
  2. fig. the natural order of things
  3. something you can't go against

CEDICT

Entry Composition

1 天 tiān
  1. day
  2. sky
  3. heaven
2 要 yào
  1. to want; to need; to ask for
  2. will; shall; about to
  3. need to; should
  4. if (same as 要是 yàoshi)
  5. (bound form) important
3 落雨 luòyǔ (dialect) to rain
=4 娘 niáng
  1. mother
  2. young lady
  3. (coll.) effeminate
=4 娘 niáng variant of 娘 niáng
5 要 yào
  1. to want; to need; to ask for
  2. will; shall; about to
  3. need to; should
  4. if (same as 要是 yàoshi)
  5. (bound form) important
6 嫁人 jiàrén (of a woman) to get married; to take a husband