Toxin-antitoxin immunization
[医] 毒素抗毒素免疫法
🧩 词语组成解析
toxin
['tɔksin]
n. 毒素;毒质;
antitoxin
[ˌænti'tɔksin]
n. 抗毒素;
immunization
[,imju:nai'zeiʃən, -ni'z-]
n. 免疫;
🗣️ 情景例句
Your mother is thinking of
你妈妈正考虑
All right.
行。
From 1830 onwards in the USA and from about 1870 in Canada, settlers began to move westwards and to take possession of the plains as their own.
美国自1830年起，加拿大从1870年左右起，殖民者开始向西迁移，并把平原据为己有。