num.第二十八
August is the eighth month in a year. 八月是一年中的第八個月。
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 was the eighth to break the record. 他是打破該記錄的第八人。