become less pleasant or attractive; turn out badly
变得不愉快；失去吸引力；变得不受欢迎
the vision of bedsit freedom soon turned sour.
这种把卧室和起居室并为一体可以自由自在的想法很快就变得不受欢迎了。
used to refer to an attitude in which someone disparages or affects to despise something because they cannot have it themselves
酸葡萄心理（因为自己得不到就诋毁或蔑视某物）