一团粉尘在他周围扬起。The powdery dust rose in a cloud around him.暴风雪夹着大团的积雪吹过湖面。A blizzard was blasting great drifts of snow across the lake.他一把扯下那女孩的照片，将它揉成一团。He tore down the girl's photograph, and crumpled it into a ball....
雪融化的时候，洪水会上涨。As the snows melt, the flood waters rise.群山融化的雪不断流经山谷.The valley is continuously watered by the melting snow from the mountains.登山者在融化的冰上找不到多少立足之处.The mountain climber could not find many footholds on the me...
Conference in corridors, on stairways or walkways must be avoided.应避免在走廊 、 楼梯、人行道上开会交谈.He made his way along the sepulchral corridors.他沿着阴森森的走廊走着。Even her own party considered her shrewish and nagging, and cold-shouldere...
如果眼睛过于疲劳就会充血.If the eyes are severely strained , they become bloodshot.滴鼻剂常可缓解鼻腔充血.Nose drops often relieve nasal congestion.他的两肺似乎有充血现象.His lungs seem to be congested....
该行业一直在努力开发一些可以替代这些气体的无害物质。Industry has been working at developing harmless substitutes for these gases.一种气体的密度the density of a gas你如何计量气体的体积？How do you measure the volume of a gas?...