Tensioner
n. 拉紧器, 张紧装置；皮带张力器
🗣️ 情景例句
I've been friendly with the Stewart family
我和Stewart家有交情
Think much, speak little, and write less.
勤思考，寡发言，少落笔。
Mary has written ten letters today.
马力今天写了十封信。