Neutron density
[电] 中子密度
🧩 词语组成解析
🗣️ 情景例句
and left ... push ... push ... turn ... hit the floor.
向左……推……推……转身……坐地板。
I think it's going to break soon.
我认为它将很快被打破。
she rang up her daughter and asked for her help in what she described as a little spot of bother.
她只得打电话向女儿求援，说她碰到了一点儿小麻烦。