?勒紧裤带

... cross one's fingers 希望自己好运 tighten one's belt 勒紧裤带 air one's dirty laundry 把别人不光彩的事或不欲人知的秘密传出去 ...

?节约

... feel sorry for 同情 tighten one's belt 节约 do without 不去用某些东西 ...

?束紧腰带

... pinch pennies 精打细算(非常节省)... tighten one's belt 束紧腰带 or 或者 ...

?过紧日子

...arantee of basic cost of living allowances for workers laid off from state-owned enterprises 过紧日子tighten one's belt 过温饱生活live alife at asubsistent level ..