他接受采访时阐述了持乐观态度的理由。In the interview he gave some grounds for optimism.反对理由有两点：太冒险而且太昂贵。The case against is twofold: too risky and too expensive.地方法官承认该慈善机构有理由提起诉讼。The magistrates granted that the charity was justified in ...
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....