Mesonic atom
[化] 介子原子
🧩 词语组成解析
a. meson的变形
🗣️ 情景例句
The battle was very historic.
那场战役在历史上很重要。
Please be on time.
请准时到。
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。