Electro-cardiographs
(electro-cardiograph 的复数) n. [内科] 心电图仪, [内科] 心电图描记器
🧩 词语组成解析
n. 电镀物品
🗣️ 情景例句
about the possibilities.
有多大的可能性。
He never breaks his word.
他决不食言。
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。