b)eat something ↔ up informalUSE/CONSUME to use a lot of something, especially until there is none left 用光;耗尽
Big cars just eat up money.
开大车只会把钱造光。
c)be eaten up with/by jealousy/anger/curiosity etcVERY to be very jealous, angry etc, so that you cannot think about anything else 充满嫉妒/愤怒/好奇等
Examples from the Corpus
eat up• We were always taught to eat our vegetables up.• Margaret ate it all up and then asked for more.• Non-energy saving light bulbs just eat upelectricity.• The V8 is a very powerfulengine, but it really eats upgas.• My renteats up most of my money.• Come on, boys -- eat up your supper and get to bed.