光通过棱镜时产生折射。Light is refracted when passed through a prism.一束光通过棱镜就会形成光谱。A spectrum is formed by a ray of light passing through a prism.棱镜把光分解成虹的各种色彩.The prism broke the light into all the colors of the rainbow....
人们发现他被斩首的尸体漂浮在一条水渠里。His decapitated body was found floating in a canal.这条水渠给这个县带来的好处是多方面的.The canal has proved useful to the county in many ways.河的两边遍布纵横交错的水渠.Canals checkerboard the countryside on both sides of the rive...