Monophyletic
[医] 一元的
🗣️ 情景例句
Come on, poochie.
来吧，小家伙。
What did the doctor say?
医生说了什么吗？
Once we get down to the oil, it usually flows to the surface because great pressure,
一旦到达油层，石油就会由于地下巨大的压力流到地面上来，