Blker
abbr. black；block
🗣️ 情景例句
I am unfamiliar with law.
我对法律不熟悉。
Success grows out of struggles to overcome difficulties.
成功来自于克服困难的斗争。
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。