Outer cover
[化] 汽车外胎
🧩 词语组成解析
outer
['aʊtɚ]
adj. 外面的，外部的;远离内部（中心）的;[哲]客观外界的，物质的;
n. 环外命中;
🗣️ 情景例句
The pleasure is mine.
认识你是我的荣幸。
I think it's going to be a nice day.
我想今天会是一个好天。
and because there is so much of it the function would seem to e important.
睡眠占去那么多时间，所以其作用似乎还是很重要。