光是由波长极短的电磁波组成,这一事实看来已经证据确凿.The evidence seemed inescapable that light consisted of electromagnetic waves of extremely short wavelength.她打了了极短的招呼.She gives a ultra - brief greeting....
Burton's text is concise and informative...伯顿的文章语言简洁，信息丰富。Burton gave a kindly chuckle.伯顿和善地咯咯一笑.Burton's text is concise and informative.伯顿的文章语言简洁，信息丰富。He fled to America with Phyllis Burton, an erstwhile frie...