Say for example, you have light enter a point on a surface, you then have the light continue to go through the object until it hits a back face, i. e. , it leaves the object.

譬如说，你轻点就进入了表面然后根据你继续办理，直到碰到一回面对象，即离开物体。

youdao

Arsenal go back on the road this weekend to face Blackburn - just 20 miles or so up the road from Old Trafford - and Wenger wants his team to rediscover their reputation.

本周末阿森纳将做客布莱克本，离老特拉福德仅有20英里左右的距离，温格希望他的球队能够重新证明自己的实力。

youdao

Netherlands international Kuyt, Slovakia centre-back Skrtel and England right-back Johnson did not go on international duty as they recovered from injury and all four should be fit to face the Hammers.

BBC: Liverpool boss Roy Hodgson angry over Gerrard injury