文字烟花:under no circumstance的意思是什么？

under no circumstance的意思是什么？ Under no circumstances ____betray our friends for personal benefit. you will be under no obligation to do so什么意思 under no circumstances should a communist place his personal interest first的中文意思 What is it that passes under the sun yet cats no shadow.(谜语) Tom sat under a tree and seeing his friend,__up in no time. under-pay under attack payment under ****** NO NO NO