The benzene vaporized and formed a huge cloud of gas.苯蒸发了，形成了一大团气体。The benzene ring is also seen in other compounds.苯环在其他化合物中也可以看见.Resonance theory says that benzene can be represented by two contributors.共振论认为苯能用两个参与体表示...
It is not uncommon for people to jaywalk.人们任意穿越马路并非不常见.Pedestrians have to travel farther to cross the street legally unless they want to jaywalk.行人需要走远一点从斑马线上横过马路,除非他们想要乱穿马路....