現在，他們知道我們在這裏。

Now, they know we are here.

Source: Tatoeba

Sentence Composition

1 現在 xiànzài now; at present; currently
2 他們 tāmen they; them
3 知道 zhīdào
  1. to know; to become aware of
  2. also pr. zhīdao
4 我們 wǒmen we; us; ourselves; our
5 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)
6 這裏 zhèlǐ variant of 這裡 zhèlǐ