✅ 同义词
🗣️ 情景例句
Speaking of promoting the book,
说起促销书的事
Your friend was here a week ago,wasn't he?
一个星期前，你的朋友曾在这里，是不是？
I had been asked to drive in heavy traffic and had done so successfully.
按照要求在车辆拥挤的路上驾驶，我圆满地完成了。