Ceftiofur
[化] 头孢噻夫
🗣️ 情景例句
And Max has your initials, Grandpa: M.S.
Max的名字开头字母与你的一样 ，爷爷 ，都是M.S.。
A wonder lasts but nine days.
新鲜事儿不久长。
and we have only to turn to that extraordinary discovery of echo-location in bats to see a case in which the voice plays a strictly utilitarian role.
我们只要看一看蝙蝠回声定位这一极不寻常的发现，就可以探究一下声音在什么情况下有绝对的实用价值。