Valve casing
[機] 閥箱, 閥殼
?? 詞語組成解析
valve
[v?lv]
n. 閥;真空管;（管樂器的）活栓;（心臟的）瓣膜;
vt. 裝閥于;以活門調節;
casing
[['keisi?]]
n. 箱, 盒, 包裝, 框, 套管\\n[化] 汽車外胎
??? 情景例句
Isn't that right?
對不對？
A thousand friends are few, one enemy is too many.
朋友千人尚覺少，仇敵一人猶嫌多。
My employer will confirm that I was there on time.'
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