Outer belt
= ring road
🧩 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;
belt
[bɛlt]
n. 腰带;区域;传送带;带状物;
vt. 环绕，包围;用带做记号;用力打;绕着系上带子;
🗣️ 情景例句
We're open till nine P.M..
我们开到晚上九点。
There are four quarters in every dollar.
每美元有四个二角五分。
But suppose the earth could be covered with sensors spaced one foot apart,
假设地球上可以布满传感器，每个相隔1英尺，