Cd4
abbr. CD4细胞；CD4抗艾滋病药（Cluster of Differentiation 4）
🗣️ 情景例句
Good morning, Sam.
早安， Sam。
Do you have nay objection to the stipulations about the packing and shipping marks?
有关包装运输唛头的条款你们有什么异议吗？
Growth, however, brings new problems and concerns.
不过，发展也带来了新的问题和顾虑。