Casing o-ring
[化] 壳体O型环
🧩 词语组成解析
casing
[['keisiŋ]]
n. 箱, 盒, 包装, 框, 套管\\n[化] 汽车外胎
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
How come you speak such good English?
你为什么能说这么好的英语呢？
His health has been lousy.
他的健康状况近来很糟。
Who was second? Who was third?
谁是第二？谁是第三？