美国重启强生冠状病毒疫苗使用
日期:2021-04-24
Words in This Story
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benefit –n. a good or helpful result or effect
pause –n. a temporary stop : a period of time in which something is stopped before it is started again
blood clot –n. a thick and sticky clump of dried blood that stops blood from flowing through a blood vessel
storage –n. space where you put things when they are not being used
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