casing

'keisiŋ

n. the outermost covering of a pneumatic tire
n. the enclosing frame around a door or window opening

n. 箱, 盒, 包装, 框, 套管
[化] 汽车外胎

14,249

BNC 频率

12,258

使用频率

casing 是由词根 case（箱子，案件）加上后缀 -ing 组成，表示“装入箱子里的东西”或“外壳”的意思。

例句

1. The new phone comes with a protective casing to prevent damage.

新手机配有保护壳以防止损坏。

2. She took the casing off the light bulb to replace it.

她拆下灯泡的外壳以更换它。

3. The book was in a beautiful casing that made it a perfect gift.

这本书有一个漂亮的外壳，使它成为完美的礼物。