1778 Sir Humphry Davy, English chemist and inventor of the miners safety lamp, was born in Cornwall, the son of a woodcarver.是什么意思_1778 Sir Humphry Davy, English chemist and inventor of the miners safety lamp, was born in Cornwall, the son of a woodcarver.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句