Anyone who steals can be called a thief. A robber often uses violence or the threat of violence to steal things from places such as banks or shops. A burglar breaks into houses or other buildings and steals things.

凡是偷东西的人都可以称作 thief。robber 常常使用暴力或威胁使用暴力从银行、商店等处抢劫。burglar 指闯入住户或其他建筑偷窃的盗贼。