Bacterium ambiguum
[医] 不定型细菌, 施米茨氏痢疾杆菌
🧩 词语组成解析
🗣️ 情景例句
How long will it take for my mail to reach its destination?
我的信件到达目的地要多久？
Can I get a seat for today's 7:00 a.m. train?
我可以买到今天上午7点的火车座位吗？
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。