Impredicative
非直谓的, 非断言的
🗣️ 情景例句
when Susan and Richard were babies?
当Richard和Susan还很小时？
When two ride on one horse, one must sit behind.
两人共骑一匹马，总有一个背后跨。
Half the world's telephone calls are made in English.
全球1/2的电话是用英语打的。