Polysulphide
n. [化]多硫化物
🗣️ 情景例句
One picture is worth a thousand words.
百闻不如一见。
He makes the bads every day.
他每天都铺床。
The development of such a telescope will be one of the great astronomical projects of the twenty-first century.
而开发这样一台望远镜将会是21世纪天文学的一个重要的研究课题。