雅思口语天天练：“揩油”怎么说？

　　揩别人油，占别人便宜可以说 to sponge off someone 就好象是个sponge 擦呀擦的。

　　Hes 30 years old, but still lives at home and sponges off his parents. 他都30岁了，还是住在家里啃老。

　　John is a miser. He always sponges off his friends. 他是个小气鬼，就知道占朋友便宜。