Endothecium
n. 内层, 内皮
🗣️ 情景例句
I'm thirty.
我三十岁。
One wrong thought may cause a lifelong regret.
一念之错可铸终生之恨。
I have two cats. One is white, the other is black.
我有两只猫，一只是白猫，另一只是黑猫。