be the lucky number

常見例句

A reference number will be provided instantly after the lucky draw registration.
參考編號將會于登記完成后即時提供，以作參考。
forms.online.standardchartered.com
THE Chinese consider eight to be a lucky number because it sounds like the word meaning "prosperity".
中國人認為八是個幸運數(shù)字，因為它念起來像“發(fā)”。
Of course, I happen to be one of those lucky people who could be repeated the number out loud, and then actually 'hear it' for a long time, simply by listening. Try it some time.
當然，我碰巧是那種幸運的兒，總是能被高聲重復，然后聽好長時間，只是簡單的聽、嘗試。