Radiation preservation
[化] 辐射保藏
🧩 词语组成解析
🗣️ 情景例句
I estimate his age to be about 30.
我估计他的年龄大约30岁。
Would he have seen you if you hadn't waved to him?
如果你没向他招手他会看见你吗？
No. The next development was to carve the characters on a piece of wood.
是的，不象。下一步的发展是将汉字刻在一片木板上。