The white fur of the polar bear is a natural camouflage.北极熊身上的白色的浓密软毛是一种天然的伪装.The Arctic remains the domain of the polar bear.北极仍是北极熊的领地.A polar bear has a preference for cold weather.北极熊喜欢寒冷的天气....
五是二十五的平方根.Five is the square root of 25.百分之九十五的屏幕都包含电脑制作的图象.95 percent of the screen contained images made by computers.每年需要移植器官的人又以约百分之十五的速度递增.The demand for transplantable organs is rising about 15 percent annually....
他的独木舟在险滩下面的河水中。His canoe was there, on the river below the rapids.汽艇穿过激流,绕过险滩.The motorboat cut across swift currents and skirted dangerous reefs.由他掌舵, 通过这段激流险滩是万无一失的.With him at the helm, we are a hundred percent safe c...