Pentahydroxy-acid
[化] 五羟基酸
🧩 词语组成解析
🗣️ 情景例句
Thanks for inviting me to the dinner. I'm looking forward to it.
谢谢你邀请我一起吃晚饭，约会日期早些到就好了。
When the wolf grows old, the crows ride him.
狼老被鸦欺。
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。