adj.[醫(yī)]視力正常的

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. 他灰心喪氣地花了二十分鐘才趕到商業(yè)中心區(qū)另一邊的薩可大樓。

The jewels will be held in trust for the girl till she is twenty. 女孩的那些首飾將被托管到她二十歲為止。

It take twenty minutes for us to go there by bike. 我們騎自行車到那里要花20分鐘。

He looks to be a young man of twenty. 他看起來就像一個20歲的青年。

He has been in practice for twenty years. 他已有20年的實踐經(jīng)驗。

He's been in tin-pan alley for twenty years. 他二十年來一直演奏流行樂曲。