Boundstone
黏结灰岩
🗣️ 情景例句
Turn around, Michelle. Let me see the back of it.
转过去一下， Michelle。让我看看它的背面。
The student felt very shy as he stood in front of the class.
那个学生站在大家的跟前时，感到非常难为情。
Quite by accident. I moved a few peas and there it was.
很偶然。我挪了几颗青豆就发现了。