Sero-immunity
[医] 血清免疫, 被动免疫
🧩 词语组成解析
[人名] 塞罗
immunity
[i'mju:niti]
n. 免除，豁免;免疫力;
🗣️ 情景例句
It's crowded in here.
这里太挤了。
He who has not tasted bitter knows not what sweet is.
不吃苦中苦，哪知甜中甜。
And if, with the decay of vitality, weariness increases,
再者，随着精力的衰退，老年人的疲惫感会增长，