在第一個紅綠燈左轉。

Turn left at the first light.

Source: Tatoeba

Sentence Composition

1 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)
2 第一個 dì-yīgè the first (person, thing)
3 紅綠燈 hónglǜdēng
  1. traffic light
  2. traffic signal
4 左轉 zuǒzhuǎn to turn left