1. Don't trust a goat with the kitchen-garden or a wolf with a sheepfold.

    不能请羊管菜园，不能请狼管羊圈。

2. Who keeps company with wolves, will learn to howl.

    和狼在一起，就会学狼叫。 

3. Man is a wolf to man.

    人对人是狼。（人心狠，人吃人）  

4. A growing youth has a wolf in his belly.

    年轻人，在成长，吃起饭来像饿狼。

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