He measured the speed at which ultrasonic waves travel along the bone.他测出了超声波穿过骨头的速度。Set up ultrasonic wire bonding laboratory.成立超声波电子焊接实验室。Modern medical technology like type-B ultrasonic checks can reveal the fetus gen...
I wanted the front garden to be a blaze of colour.我想让门前的花园变得五彩缤纷。All colour fades— especially under the impact of direct sunlight.所有颜色都会褪色——尤其是在阳光直射下。The only difference between us is the colour of our skins.我们之间唯一的差别就是肤...