Fissiography
裂变产物自摄像术
🗣️ 情景例句
When they come out, we'll get it.
一出来， 我们就会拿到手。
Those who eat best and drink best often do worst.
吃得好喝得好的人往往干得最糟。
It is only 380,000 kilometres away, and it has been visited by man already.
已经有人到过月球旅行了。