Geologists have studied the way that heat flows from the earth.地质学家曾研究过热量如何散出地球。We need helpers of all types, engineers, scientists (e.g. geologists) and teachers.我们需要各方面的帮手：工程师、科学家（例如地质学家）和教师。By drilling, geologists can...
Hooky, naturally, has to prove his machismo by going on the scariest rides twice.胡基自然要坐两次最恐怖的过山车来表现一下自己的男子汉气概了。The bus driver drove with machismo through a tangle of marrow streets.公共汽车司机得意洋洋地驱车在狭小的街巷中穿行.Machismo is a de...
I find him difficult to talk to—we’re on completely different wavelengths.我没法和他谈话， 因为我们俩完全不对路。To detect shorter wavelengths, astronomers must put instruments above the earth's atmosphere.要探测到更短的波长, 天文学家们就必须把仪器送到地球大气...