Germ theory
[医] 病菌学说
🧩 词语组成解析
🗣️ 情景例句
How long does it take?
要花多久时间？
We use service centers at major stores. They ship goods back to our national service center for repairs.
我们采用大店服务中心，他们可把产品运送到我们的国内服务中心维修。
but at this age the likelihood of death is least.
但在这个年龄死亡的可能性最小。