by any chance的用法和樣例：
例句
- If it should chance to rain we'll take a taxi home.
萬(wàn)一要下雨的話(huà)，我們就乘出租車(chē)回家。 - In case you should need any help, here's my number.
萬(wàn)一你需要幫助的話(huà)，這是我的電話(huà)號碼。 - I happened to sit by her in the cinema.
在電影院我碰巧坐在她旁邊。 - Excuse me, have you get a light by any chance?
對不起，你碰巧有打火機嗎？
