Heteromorphite
异硫锑铅矿
🗣️ 情景例句
It's so good to have you home again ...
真高兴 ，你又回家了……
I plan to go to the concert.
我打算去听音乐会。
In 1953, a former electronics engineer in his fifties, Christopher Cockerell,who had turned to boat-building on the Norfolk Broads,
在1953年，有一位50多岁名叫克里斯托弗·科克雷尔的原电子工程师，改行在诺福克郡的湖泊地区从事造船业，