Pants usually have pockets to hold things. Money that is likely to be spent quickly can "burn a hole in your pocket." Sometimes you need a belt to hold up your pants. If you have less money than usual, you may have to "tighten your belt" -- you may have to live on less money and spend your money carefully. But once you have succeeded in budgeting your money, you will have that skill "under your belt."_____________________________裤子上总是有装东西的口袋,花钱如流水就像口袋里被烧了洞(burn a hole in your pocket).有时需要用裤袋勒紧裤子,当钱不多时,你可能要勒紧裤腰带了(tighten your belt),少花些钱,小心地花钱.但一旦成功地对钱做了预算,就能扎实地(under your belt)学会了预算的技能.________________________