Packstone
泥粒灰岩
🗣️ 情景例句
When you read, read as loudly as possible, as clearly as possible and as quickly as possible.
当你读的时候，要尽量大声、尽量清晰和尽量快速。
I wonder what makes you so worried.
我不知道是什么使你这样担心。
What are you doing on Saturday evening?
你星期六晚上要干什么？