to be a condition or requirement that is uncertain or potentially challenging to fulfill
a story that seems impossible, particularly one that is used as an excuse
荒唐的故事, 离谱的故事
used to express anger and the fact that someone does not care about someone or something
used to say that one does not think that something will ever happen or has any chance of being true
used to refer to something that exceeds one's expectations in such ways that makes it hard to believe
used to refer to something that is extremely desirable yet nearly impossible to obtain
a promise of something good or desirable that will never be fulfilled
虚假的承诺, 美好的幻想
to aim for goals that are unrealistic or extremely difficult to achieve
to make promises that are impossible to be fulfilled or be kept