Rotoclone
洛托离心集尘机
🗣️ 情景例句
How many classes are you taking this semester?
这学期你有多少课？
One scabbed sheep will mar a whole flock.
一羊生癣，群羊受害。
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，