他们俩在同一个年龄。

They are the same age.

Source: Tatoeba

Sentence Composition

1 他们俩 tāmenliǎ the two of them; those two people
2 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)
3 同一个 tóngyigē
  1. same
  2. same one
4 年龄 niánlíng (a person's) age

classifiers: 把, 個