我们必须一起完成这个任务。

It's necessary that we all work together to complete this assignment.

Source: Tatoeba

Sentence Composition

1 我们 wǒmen we; us; ourselves; our
2 必须 bìxū
  1. to have to
  2. must
  3. compulsory
  4. necessarily
3 一起 yīqǐ
  1. (in) the same place
  2. together; in company (with)
  3. altogether; in total
  4. an instance of; a case of (murder, accident, dispute etc)
4 完成 wánchéng to complete; to accomplish
5 这个 zhège
  1. (pronoun) this
  2. (adjective) this
=6 任务 rènwu mission; assignment; task; duty; role

classifiers: 項, 個
=6 任务 rènwù task; assignment; job; mission