Rechallenge
激发试验
🗣️ 情景例句
It's certainly a pleasure to meet you.
认识你真是我的荣幸。
A man is known by the company he keeps.
察其友知其人。
That's a big box. Is it heavy? Please let me help you.
这是个大盒子。重吗？让我来帮你。