I have lost my pencil-box.

我把铅笔盒弄丢了。

youdao

When we were having PE class, one of our classmates said she lost her pencil box and she accused Lily was the thief.

我们在上体育课的时候，一个同学说她的铅笔盒不见了并指控说莉莉是小偷。

youdao

Liu Ming lost his bag on the playground on Tuesday. It? S blue. There are some books and a pencil-box in it.

刘明星期二在学校操场丢失了他的书包：蓝色，里面有几本书和一个铅笔盒。

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But in St Albans, Hertfordshire, the Tories lost a seat to the Liberal Democrats on the length of a pencil.

BBC: NEWS | UK | UK Politics | Tories are 'satisfied' with gains

The result is that while officials can pencil in Federer for at least five matches at Grand Slam tournaments he last lost before the quarterfinal round nine years ago they can't count on him to stay on court for very long.

WSJ: Does Roger Federer Have Someplace Else to Be?