Eustele
n. [植]真中柱( 存在于大多数裸子植物和被子植物的茎内)
🗣️ 情景例句
Yes, most of them are, except for the plastic parts.
对，除了塑料制品其他都是。
A ragged coat may cover an honest man.
不能以衣著取人。
Both! American spellings are used more and more in Canada now.
两种都用！现在在加拿大人们越来越多的采用美国拼法了。