Squelette
翼形中線(弧線), 剖面中線
??? 情景例句
The bible is a literary classic of the ancient world.
圣經是一部古代文學經典著作。
I dare you to try.
有種你給我試試看。
Good! That's done. Now the tree must be tied to the stick.
好的！做好了。現在該把樹系在木棍上了。