Sct
[化] 简单碰撞理论
🗣️ 情景例句
What if we can't tie the tie?
如果我们弄不好领结怎么办？
What's the typical farm product in this region?
这个地区典型的农产品是什么？
Number 13 buses run much more frequently, don't they?
13路车跑得更勤，是不是？