Sapium discolor's morphological character seed - collecting and seedling - raising , cultural technique are presented.介绍了山乌桕的形态特征, 采种 育苗和造林技术.Smoking and some medications can also discolor teeth.当然,抽烟和一些药物治疗也有可能引起牙齿...
Is Hell exothermic ( gives off heat ) or endothermic ( absorbs heat )?地狱是散 发热量 还是吸收热量?A household radiator absorbs energy in the form of electric current and releases it in the form of heat.家用取暖器吸收电流能量，再以热量的形式释放出来。The mo...
西蒙拨完号，把听筒贴在耳边。Simon finished dialing and clamped the phone to his ear.他慢慢挪向电话机，准备抓起听筒。He edged closer to the telephone, ready to grab it.她拿起电话听筒，开始拨打莫里斯·坎贝尔的号码。She picked up the phone, and began to dial Maurice Campbell&...
Self-discipline, willingness, enthusiasm, that's what you must depend on.自律、自愿与热情，这是你所必须依仗的。Exercising at home alone requires a tremendous amount of self-discipline.自己在家锻炼需要很强的自我约束能力。It takes a lot of self-disciplin...