Seropositivity
血清阳性
🗣️ 情景例句
What's your regular practice concerning terms of payment?
你们常用什么付款方式？
When I'm going to buy a TV set next time, I'll buy a portable model.
你有电视节目表吗？新闻与气象节目之后是什么？
What is the minimum we would have to order.
那么我们至少得订多少呢。