单词	it should be a regret that
释义	it should be a regret that 遗憾
随便看	pollution of lake pollution of manure pollution of mariculture pollution of marine environment pollution of membrane pollution of membrane tube pollution of Mn dregs pollution of natural water pollution of oil ship Pollution of oil spillage pollution of paddy soils pollution of pcbs pollution of pesticide Pollution of pesticides pollution of plant nutritions pollution of reservoir pollution of river pollution of sea pollution of sea by oil Pollution of sea by ship pollution of seawater Pollution of Ship's Antifouling Paint Pollution of Ship's Noise pollution of single element pollution of smoke from burningcoal