Nubar
平均裂变中子数
🗣️ 情景例句
What's the bottom line?
究竟是怎么回事？
The higher the ape goes, the more he shows his tail.
猴子爬得越高，尾巴越加暴露。
Most of our fears are unreasonable, but they are impossible to erase.
我们的恐惧大部分是没有道理的，但去无法消除。