Common Usage & Traps
- 很快 — very fast; very soon
- 快点 — hurry up
- 快车 — express train
- 快乐 — happy
- 快餐 — fast food
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快人快的人As an adjective before a noun, 快 usually needs 的: 快的人 means 'a fast person'. 快人 is not a normal standalone word at HSK 2.
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快好很快好To say 'get well soon' or 'will be good soon', use 很快好 or 快好了, not 快好.