Vaccinifer
[医] 痘苗源(动物或人)
🗣️ 情景例句
I'm planning to run for the school board.
我打算竞选联合校董会董事。
Youth is a blunder; manhood a struggle, old age a regret.
青年冒失莽撞；成年发奋图强；老年遗憾懊丧。
Moondwellers will be able to fly in space at only three percent of the cost of similar journeys by their terrestrial cousins.
月球居民在太空遨游的费用仅是地球上朋友飞越同样路所需费用的3%。