adj.[医]视力正常的
It took him a frustrating twenty twenty minutes to reach the Zaco Building, which was on the opposite side of the city's business district. 他灰心丧气地花了二十分钟才赶到商业中心区另一边的萨可大楼。
The jewels will be held in trust for the girl till she is twenty. 女孩的那些首饰将被托管到她二十岁为止。
It take twenty minutes for us to go there by bike. 我们骑自行车到那里要花20分钟。
He looks to be a young man of twenty. 他看起来就像一个20岁的青年。
He has been in practice for twenty years. 他已有20年的实践经验。
He's been in tin-pan alley for twenty years. 他二十年来一直演奏流行乐曲。
