Vertafume
三氯硝基甲烷与溴甲烷的混合物
🗣️ 情景例句
Chest--c-h-e-s-t.
Chest c-h-e-s-t。
John has extracurricular activities. He's on the football team.
约翰有课外活动。 他参加了足球队。
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，