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
Well, I know you and Mom have given up a lot
嗯， 我知道你和妈妈省吃俭用
I ought to not bother him any more.
我应该不要打扰他了。
Best wishes,
衷心地祝福你，