详细释义
Noun:
-
an impermanent form of acquired immunity in which antibodies against a disease are acquired naturally (as through the placenta to an unborn child) or artificially (as by injection of antiserum)
双语例句
- This is called passive immunisation.
这叫作被动免疫。 - Although passive immunization now seems to hold the most promise, active immunization is not out of the running.
虽然目前看来是被动免疫最具潜力，但是主动免疫也不见得就此退出赛局。
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