Proconvertin
(血清凝血酶原)转变加速因子前体
🗣️ 情景例句
We used to catch crabs.
我们以前常捉螃蟹。
The best mirror is an old friend.
老朋友是最好的镜子。
Nearly everybody enters for 'The Nicest Garden Competition' each year, but Joe wins every time.
几乎每个人都参加每年举办的“最佳花园竞赛”，而每次都是乔获胜。