It's always upward sloping, but it may, after awhile, you get close to satiation where you've got enough.
斜率永远是正的,但是也有可能,你拿的钱够多,效用将不再上升
耶鲁公开课 - 金融市场课程节选
It's close by. BJ's is always really good, so.
离得近。BJ's总是很好。就这样。
与室友和睦相处 - SpeakingMax英语口语达人
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