Serovar
血清变型
🗣️ 情景例句
I heard through the grapevine that the minister is going to resign.
我听到小道消息，首相将辞职。
One penny with right is better than a thousand without right.
合法取得的一辨士，胜于非法取得的一千辨士。
Forty-two years later a tunnel was actually begun.
42年以后，隧道实际已经开始建了。