不缴水费引起的断水的比率正在上升。The rate of disconnections following non-payment of water charges is rising.流入湖中的泉水和河水携带了溶于水的硝酸盐和磷酸盐。Springs and rivers that drain into lakes carry dissolved nitrates and phosphates.这两个男人为土地和水的使用权发生了争斗。T...
这种物质聚合形成坚硬的塑料。The substance polymerizes to form a hard plastic.枯松枝生起的篝火给这次聚合增添了随和、友善的气氛.A fire of withered pine boughs added sociability to the gathering.酸酐类固化剂则要求加热以促进聚合反应.Anhydride - type curing agents require the appl...