For once

for [fɚ]

prep. 为，为了;倾向于;关于;当作; conj. 因为，由于;

once [wʌns]

adv. 一次，一趟;一倍;曾经;一旦; conj. 一旦…就…;一经; n. 一次，一回;

on=one一+ce次 → 一次

How good is your English?

你英语有多好？

I suppose it might be gold.

说不定是金子啊。

Do you remember one afternoon ten years ago when I came to your house and borrowed a necklace of yours? Pierre, my husband, was working in a government office. We'd been invited to a ball at the palace so I needed to borrow some jewellery.

10年前的一个下午，我到你家借过一条项链，你还记得吗？我的丈夫比尔当时在政府的一个部门工作。我们被邀请参加一个宫庭舞会，所以我需要借一点珠宝首饰。