Cd4
abbr. CD4细胞；CD4抗艾滋病药（Cluster of Differentiation 4）
🗣️ 情景例句
It's so good to have you home again ...
真高兴 ，你又回家了……
Buy one get one free.
买一送一。
She was carrying 1,316 passengers and crew of 891.
船上载有1，316名乘客与891名船员。