Sublabrum
内唇
🗣️ 情景例句
we're all in for trouble.
我们都会吃不消的。
As well be hanged for a sheep as for a lamb.
偷大偷小都是贼。
The slope averages about 1 in 30, but contains steep,
坡度平均约为1/30，但其中包括陡峭的，