Mill's certificate

certificate [sɚ'tɪfɪkət]

n. 证明书;文凭，结业证书; vt. 发给证明书;用证书证明（或认可）;

cert 搞清 + ifi=fy表动词 + cate表名词 → certify搞清楚=证明+ cate表名词 → 证件

Do you have any tickets available for that date?

你们有那天的票吗？

I wrote novels yesterday.

我昨天在写小说。

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。