Immunodeficiencies
(immunodeficiency 的复数) n. 免疫缺陷, 免疫缺损
🗣️ 情景例句
If it ain't broke, don't fix it.
东西还没坏，就别急去修它。
I am beginning to lose my temper with you!
有你在，我总忍不住想要发脾气。
The second factor is more interesting and more fundamental.
第二点更有意思，也更重要。