Objective To study the immunity duration of attenuated live rubella vaccine.目的了解冻干风疹减毒活疫苗的免疫持久性....round arches and attenuated columns.圆拱门和细长石柱Objective : To analyze the efficiency of delivery for CD 8 + T cell epitope b...
我不觉得这是负担；我觉得它是一种责任。I wouldn't call it a burden; I call it a responsibility.一个收入为34,895美元的人能负担得起这笔贷款。Someone with an income of $34,895 can afford this loan.高血压会给心脏增加额外的负担。High blood pressure imposes an extra load on ...