動詞 slacken:

1. become slow or slower
   同義詞：slow, slow down, slow up, slack
2. make less active or fast
   同義詞：slack, slack up, relax
3. become looser or slack
4. make slack as by lessening tension or firmness
   同義詞：remit

1. We're on the last lap, so don't slacken!
   我們已處最後階段，可不要松勁啊！
2. The train slackened speed as we approached the station.
   當我們快到車站時，火車減慢了速度。
3. Please slacken the tent rope before it rains.
   下雨前，請將帳篷的繩索放松。