Antigenic drift
[机] 抗原漂移
🧩 词语组成解析
a. 抗原\\n[医] 抗原的
drift
[drɪft]
vi. 流动;随意移动;漂泊;浮现;
vt. 漂流;堆积成堆;
n. 漂移，偏移;趋势，动向;大意;放任自流;
🗣️ 情景例句
The darkest evening of the year.
在这一年中最漆黑的夜晚 。
My sister has been engaged for two months.
我的姐姐订婚有2个月的时间了
The spheres had been magnetized and attracted or repelled each other all the time.
金属球经过磁化，互相之间不停地相互吸引或相互排斥。