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.硝酸盐是水和土壤中自然存在的化学物质。Nitrates are chemicals that occur naturally in water and the soil.硝酸盐由土壤渗入江河。Nitrates leach fro...
对于现况的不满，不能只是抱怨，要有勇气作出改变。If you're not satisfied with the life you're living, don't just complain. Do something about it.海关官员们对这种设备作出了一系列互相矛盾的陈述。Customs officials have made a series of contradictory stateme...
"Wait a damn minute," Mindy spat. "Nobody said anything about staying overnight."“该死的，等一下”，明迪愤愤地说道，“谁也没说过要过夜。”I couldn't make head nor tail of the damn film.这部该死的影片我一点儿都看不懂。I couldn't get any purchase with the ...