✅ 同义词
🗣️ 情景例句
I really mean it.
当然是真的。
I'm afraid I don't know. Let me ask the supervisor in this section.
恐怕我不知道，让我来询问一下该组的负责人。
The first settlers on the plains of America were Native Americans.
美洲平原上的首批定居者是美洲土著人。