The effects of the drug began to wear off.药效开始减弱了.I'm afraid the gilt of the ring will wear off before long.恐怕戒指的镀金层不久就会磨掉.The plating is beginning to wear off in places.镀层有的地方已经磨掉了....
色泽是反射和衍射的综合效果.Lustre is the integral effect of reflection and diffraction.在这种情况下,据说,波发生了衍射.In this case the wave is said to have been diffracted.显然,衍射以及干涉是波特性.Evidently diffraction, as well as interference, is a wave pro...