Serrated belt
[化] 齿形三角带
🧩 词语组成解析
belt
[bɛlt]
n. 腰带;区域;传送带;带状物;
vt. 环绕，包围;用带做记号;用力打;绕着系上带子;
🗣️ 情景例句
Never gamble if you can't afford to lose.
如果你输不起的话，永远不要赌博。
To ruin a brand-new car
毁坏了新车
These were the so-called mainframe machines.
它们被称为主机。