Population genetics owes its origin to Francis Galton.体遗传学的创立应归功于弗朗西斯·高尔顿.Galton devised a method of creating composite pictures in which the features of different faces were superimposed over one another.高尔顿发明了一种把不同人的五官...
我给表上紧发条，听着它嘀嗒作响。I wound up the watch and listened to it tick.手表停了还是手表,还能重新上紧发条.A run - down watch is still a watch and can be rewound.时钟不走了,上紧了的发条内所储存的能量到哪里去了?What happens to the energy stored in a wound clockspring when...
The water rushed through the holes with great rapidity.湍急的水流奔涌过洞口。The styles change with bewildering rapidity.风格多变,令人应接不暇.Animal and vegetable pests spread with extreme rapidity.动植物疫害传播极快....
The number of commuters to London has dropped by 100,000.往返于伦敦的上班族减少了10万。The rail strike is a problem for all commuters.铁路员工罢工对所有通勤者来说都是一个问题。The trains and subways in Tokyo serve thousands of commuters everday.东京的火车和地铁每天...