這個計劃必須保持秘密。

This plan requires secrecy.

Source: Tatoeba

Sentence Composition

1 這個 zhège
  1. (pronoun) this
  2. (adjective) this
2 計劃 jìhuà
  1. plan
  2. project
  3. program
  4. to plan
  5. to map out

classifiers: 個, 項
3 必須 bìxū
  1. to have to
  2. must
  3. compulsory
  4. necessarily
4 保持 bǎochí
  1. to keep
  2. to maintain
  3. to hold
  4. to preserve
5 秘密 mìmì secret; private; confidential; clandestine

classifier: 個