Sometimes a market trader would put a cat in his bag and pretend it was a pig to fool the customer! So if someone lets the cat out of the bag, the secret would be open to us.

有时一个市场商人会把一只猫放在他的包里，假装它是一只猪来愚弄顾客！所以如果有人让猫从包里出来，秘密就会为我们所知。

youdao

In the village I just came from, the squire has had a pig stolen out of his sty.

在我刚来的那个村子里，乡绅的猪圈里被偷了一头猪。

youdao

Some tables will arrive on a Sunday, order a whole chicken and a shoulder of lamb or a baby pig, and just stay for hours enjoying everything we bring out for them.

有些客人会在周日才来，点一整只鸡、一块羊肘子或一只乳猪，然后就呆上几个小时，尽情享用我们为他们准备的一切。

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As many as 800 farmers have got out of pig production in recent years, while many of those remaining are depending on extended credit from banks and feed companies.

BBC: N Ireland - a pig farmer's tale

Researchers implanted 72 embryos to get the five piglets born in March, and Xena was the only pig born out of more than 100 cloning attempts.

CNN: Researchers clone pigs

If it's cheaper to control methane by fixing a pig farm than by squeezing the last gram of pollution out of a German chemical factory, let the factory pay the pig farmer to control methane.

FORBES: When Pigs Fly