Underpopulation
n. 人口稀少, 人口不足
🗣️ 情景例句
Tongue muscles'training is of great importance in learning any foreigh language.
口腔肌肉训练在学习任何语言时都是非常重要的。
They who live longest will see most.
寿命最长的人见识也最广。
Somebody's knocking at the door. I'll answer it.
有人在敲门，我去开。