蓝光的波长比红光的短。Blue light has a shorter wavelength than red.广播1台已经用这个波长广播多年了.Radio One has broadcast on this wavelength for years.当局无法干扰这一波长.The authorities were unable to jam this wavelength....
They left by twos and threes.他们三三两两地离开.It can be a deadly weapon, upping the tempo, knocking down threes, adding intensity.他们可以成为致命的武器, 这样的发展速度, 换下3个球员, 却增加了更多的强度.The students are coming into the classroom by twos and th...