这时有些电子或离子与油滴碰撞而粘附在油滴上.Some of the electrons or ions then collide with the drops and stick to them.当给予适当照明时,这样小的油滴在显微镜下是很容易看到的.A drop of oil of this size is easily seen in a microscope when suitably illuminated.这些油滴一般都带负电...
...the scene of Robin Hood's escapades.罗宾汉大胆冒险的那一幕Secret Service officer Robin Thompson spoke on behalf of his colleagues.特工处官员罗宾·汤普森代表他的同僚发表了讲话。Robin never really liked him at all.罗宾从未真正喜欢过他。That shrewd and knavish...
他一脚漂亮的凌空抽射，把球踢进了球门的远角。He volleyed the ball spectacularly into the far corner of the net.球从他的掌中滑出，钻进了球门。He let the ball slip through his grasp and into the net.阿姆斯特朗将球打入球门网顶。Armstrong drove the ball into the roof of the n...