Piston ring
[化] 活塞环; 涨圈
📖 牛津释义
piston ring
split metal ring that fits into a groove on the rim of a piston to make a gas-tight seal 活塞环.
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
ring
[riŋ]
n. 戒指，指环;铃声，钟声;环形物;拳击场;
vt. 形成环状;环绕;使（例如铃）响;打电话给;
vi. 按铃，敲钟;回响;成环形;
🗣️ 情景例句
I'm not letting you get behind the wheel until you've sobered up.
除非你完全清醒了我才会让你开车。
Let sleeping dog lie.
勿惊卧狗；切莫惹是生非。
Welcome back to school!
欢迎回校！