number one

1. ADJ Number one means better, more important, or more popular than anything else or anyone else of its kind. 头等的[非正式] [ADJ n]

The economy is the number one issue by far. 到目前为止经济是头等大事。

2. N-COUNT In popular music, the number one is the best-selling recording in any one week, or the group or person who has made that recording. 最畅销的唱片; 最畅销的歌手[非正式]

Paula is the only artist to achieve four number ones from a debut album. 葆拉是惟一一位首发专辑获得4个畅销榜冠军的音乐家。