Neutron density
[电] 中子密度
🧩 词语组成解析
🗣️ 情景例句
That's a great idea.
好主意。
Draw water with a sieve.
竹篮子打水一场空。
Yes. At the very beginning I choose a play and the actors.
好。一开始我得选取剧本、挑选演员。