名詞 slow down:

1. the act of slowing down or falling behind
   同義詞：slowdown, lag, retardation

動詞 slow down:

1. lose velocity; move more slowly
   同義詞：decelerate, slow, slow up, retard
2. become slow or slower
   同義詞：slow, slow up, slack, slacken
3. cause to proceed more slowly
   同義詞：slow, slow up
4. reduce the speed of
   同義詞：decelerate
5. become less tense, rest, or take one's ease
   同義詞：relax, loosen up, unbend, unwind, decompress

1. It is dangerous to ride a bicycle along an icy road, so we have to use a brake to slow down the bicycle.
   在冰路上騎車是很危險的，因此我們必須用車閘使自行車減慢速度。
2. Slow down I can't keep up (with you)!
   慢點，我跟不上(你)了！
3. You must slow down your car.
   你必須把車子開慢。
4. Can we slow down and walk for a bit? I'm getting a stitch.
   咱們放慢速度步行一會兒好嗎? 我覺得腰部突然一陣劇痛。