Immunodeficiencies
(immunodeficiency 的复数) n. 免疫缺陷, 免疫缺损
🗣️ 情景例句
Thank you. In there?
谢谢 。在那里面吗？
He who makes himself a dove is eaten by the hawk.
弱肉强食。
The people performing all play different instruments and three of them sing too.
参加演出的人都要演奏不同的乐器，其中三位也演唱。