Elasticity of substitution
出国 Abroad
[经] 替用弹性
🧩 词语组成解析
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
The bridge is about three hundred and eighty-five feet long.
桥长约三百八十五英尺。
It's cold this afternoon.
今天下午很冷。
Show your tickets,please.
请出示你的票。
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