Back off, Mom, I'm old enough to make my own decisions!你别管，妈妈，我已经能够自己作决定了！They persuaded the Federal Reserve to back off of tight money.他们说服了联邦储备局在货币奇紧的情况下向他们让步.The world backs off when you make it back off, right?只...
I think they're just bumming around at the moment, not doing a lot.我想他们目前只是在四处闲逛，没做多少事。He was probably bumming his way home.“他多半是不花钱搭车回家.He had been bumming around the park all day.他在公园里荡了一整天了....