Doone
杜恩（人名）
🗣️ 情景例句
I've been studying all day, and I'm sick and tired of it.
我学了一天，现在感到厌倦。
That's my business.
那是我的事情。
Our product is competitive in the international market.
我们的产品在国际市场上具有竞争力。