/weɪst ||; west/noun1 [sing] a waste (of sth) using sth in a careless and unnecessary way 浪费;滥用: The seminar was a waste of time -- I'd heard it all before. 参加这个研讨会真是浪费时间─会上谈的内容我以前全都听过。It seems a waste to throw away all these old newspapers. 把这些旧报纸都扔掉似乎有点浪费。
2 [U] material, food, etc that is not needed and is therefore thrown away 废物;废料;垃圾: nuclear waste 核废料A lot of household waste can be recycled and reused. 许多家居废物都可以回收再用。 ☞Look at rubbish. 参看rubbish。
3 wastes [pl] (formal 正式) large areas of land that are not lived in and not used 荒原;不毛之地: the wastes of the Sahara desert 撒哈拉沙漠的荒原
go to waste to not be used and so thrown away and wasted 被浪费:
I can't bear to see good food going to waste! 看着挺好的食物白白浪费掉我真受不了!