Microcrith
[化] 氢原子重量\\n[医] 微克立司(一个氢原子重)
🗣️ 情景例句
You and I are very busy these days.
这些天来我们俩都很忙。
Nothing to be got without pains but poverty.
只有贫困可以不劳而获得。
So the number of stars that we know exist is now estimated at about 300 million million million.
因此，我们所知道的现有恒星数目估计约有30亿×1000亿颗。