Proconvertin
(血清凝血酶原)转变加速因子前体
🗣️ 情景例句
May I please speak to Mr. Kong?
我可以孔先生讲话吗？
I think it's going to be too small.
我认为它将太小。
I get to school at about 7:30 every day.
我每天七点半到校。