Heeltapping
n. 鞋跟皮层；杯中(或瓶底的)残酒；残剩饮料
🗣️ 情景例句
Well, you can write to her.
嗯，你可以写信给她。
In secondary school, children study history and geography.
中学的小孩会读历史和地理。
Yes, they're free. But there's usually a long line.
是的，免费。但常常要排长队。