Cd4
abbr. CD4细胞；CD4抗艾滋病药（Cluster of Differentiation 4）
🗣️ 情景例句
Pleased to meet you.
很高兴见到你。
You need to transfer at central station.
你必须在中央车站换车。
I think the shop is closed at this time of day.
我想商店在这个时间已经关门了。