It was a crude machine which was not suited for use as an office copier because it required a series of hand operations 3 or 4 minutes in length to produce a single copy.是什么意思_It was a crude machine which was not suited for use as an office copier because it required a series of hand operations 3 or 4 minutes in length to produce a single copy.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句