Underjaw
下颌
🗣️ 情景例句
How long will this be on sale?
这种商品减价时间有多久？
Merry meet, merry part.
好聚好散。
When it has been decided where we are going to drill, we put up at the surface an oil derrick.
当确定钻孔地点后，我们就在那里竖起一个井架。