Immunodeficiencies
(immunodeficiency 的复数) n. 免疫缺陷, 免疫缺损
🗣️ 情景例句
whom I think you've met once or twice before.
我想你以前见过他一两次面。
Please hurry, we're a bit pressed for time.
请快点，我们时间不多了。
Right. They're running and jumping all the time.
对，他们老是跑啊跳的。