Samaric metaphosphate
[化] 偏磷酸钐
🧩 词语组成解析
[化] 三价钐
n. [化]偏磷酸盐
🗣️ 情景例句
I'd like to say something first.
我想先说几句话。
I would like to suggest that we take a coffee break.
我建议我们休息一下喝杯咖啡。
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。