Pregnyl
人绒促性素
🗣️ 情景例句
What college are you attending?
你在哪里上学？
He snatched the purse and the ladder, and ran away.
他抢了手提袋和梯子，逃走了。
Thus the rods, by falling, and by the direction in which they fell,
木棒倒下的多少和倒下的方向