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
Come in, come in.
进来， 进来。
A discount of six percent is all that I'm authorized to offer you.
6%的折扣是我权限内所能给你的。
It seemed as if there was no way out.
看情形似乎没有出路了。