Seropositivity
血清阳性
🗣️ 情景例句
Susan, I'd like to continue this conversation later. Susan
我希望等一下能继续我们的谈话。
The friar preached against stealing and had a goose in his sleeve.
嘴上真君子，行动烂小人。
Those planning a trip to remote areas, or intending to live in countries where drinking water is not readily available, should know about the various possible methods for making water safe.
那些计划去偏远地区旅行，或在饮用水不现成的国家居住的人，应该知道如何使水适于饮用的各种办法。