18岁以下不可以结婚。

People under 18 cannot get married.

Source: Tatoeba

Sentence Composition

=1 岁 suì
  1. variant of 歲 suì, year
  2. years old
=1 岁 suì
  1. classifier for years (of age)
  2. year
  3. year (of crop harvests)
2 以下 yǐxià
  1. that level or lower
  2. that amount or less
  3. the following
3 不可以 bùkěyǐ may not
4 结婚 jiéhūn
  1. to marry
  2. to get married

classifier: 次