Polypody
n. 水龙骨属植物
🗣️ 情景例句
I understand, Harry.
我了解， Harry。
Never be weary of well doing.
行善莫厌烦。
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，