异想天开: indulge in the wildest fantasy; ask [cry] for the moon; ... be a fanciful illusion; be all wet; come out with most fantastic ideas; expect wonders; fanciful ideas; fantastic; freakish; get
主意: 1.(办法) idea; plan 短语和例子好主意 a good idea; 主意很多 full of ideas2.(主见) decision; definite view 短语和例子改变主意 change one's mind; 拿不定主意 be in two minds; 没了主意 don't know what to do; be at a loss; 打定主意