Some biological molecules have the form of a helix.
有些生物分子呈螺旋状.
We can see many molecules flying in the air when a sunbeam penetrated the dark room.
当一束光线穿进暗淡的房间时, 我们可以看到空气中有许多小颗粒在飞舞。
German-born Canadian physicist. He won a1971 Nobel Prize for chemistry for his contributions to the understanding of the electronic structure and geometry of molecules.
赫尔茨伯格, 格哈得生于1904德裔加拿大物理学家。他因理解分子的电子构造与几何形状而做出的贡献而获1971年诺贝尔化学奖
