Subtheme
n. 分专题
🗣️ 情景例句
Garbage and chemical waste are destroying our water.
垃圾和化学废物正在破坏我们的水资源。
Henry got a toothache and asked to be excused.
亨利牙疼，请求离开一下。
It is one of the world's most important languages because it is so widely used.
英语使用得如此广泛，它已成为全球最重要的语言之一。