Boiler casing
[機] 鍋爐套
?? 詞語組成解析
casing
[['keisi?]]
n. 箱, 盒, 包裝, 框, 套管\\n[化] 汽車外胎
??? 情景例句
that you care about me, and
關心我而且，
Hasty love, soon cold.
匆忙的愛情冷得快。
and we have only to turn to that extraordinary discovery of echo-location in bats to see a case in which the voice plays a strictly utilitarian role.
我們只要看一看蝙蝠回聲定位這一極不尋常的發現，就可以探究一下聲音在什么情況下有絕對的實用價值。