一种胶体,就其整体而言可认为不带净电荷.A sol considered as a whole cannot have a net charge.照像材料含有亲水胶体的感蓝卤化银卤剂层.The photographic elements contain a blue - sensitive hydrophilic colloid silver halide emulsion layer.胶体的弹性性质可能随着它的寿命而变化的.The e...
Freddy speaks very quietly and pads around in soft velvet slippers.弗蕾迪说话轻声细气，穿着柔软的天鹅绒拖鞋蹑手蹑脚地四处走动。She was wearing a pink bodice, black trousers and white satin embroidered slippers.她穿着件粉红的卫生衣, 下面衬着条青裤子,脚上趿拉着双白缎子绣花的拖鞋.He h...
The cold, misty air felt wonderful on his face.雾蒙蒙，寒冷的空气使他脸上感觉很舒爽。The volume of scheduled flights is straining the air traffic control system.定期航班的数量正让空中交通指挥系统不堪重负。The outside air was heavy and moist and sultry.外面的空气沉滞、潮...
他的脸失去了血色，变得一片死灰。The blood drained from his face, leaving the skin dead white.彻底煮熟的肉不会带有血色。Meat which has been cooked thoroughly shows no traces of pinkness.她如死灰般苍白的皮肤开始现出淡淡的血色。The deathly pallor of her skin had been repl...