So, you have to feed the slave all year round to work only a small part of the time, that's not very profitable.

你不得不整年的喂养奴隶,而他们只有少量时间在工作,这是很不划算的

耶鲁公开课 - 古希腊历史简介课程节选

You get a suit for under a thousand dollars which is a good fit , it's good.

不到1000美元能买套西装是很划算的。

联合广场的变化 - SpeakingMax英语口语达人

You are saying that's one of the things that would've been better if... And making it permanent. -Right And that's the very good sort of bang for buck, permanent tax change So you both view this actually as a missed opportunity, at best really, right? -Yeah It's the best it can be said for. Alright.

你的意思是，有些事原本可以做得更好,这个是其中之一，对吗。,关键在于任何措施都必须是长期的，-没错,恒定的税率改制，绝对划算,这么说，你们两位都认为,这充其量只是错失良机而已，对吗，-没错,也只能这么说说了，是吧。

斯坦福公开课 - 经济学课程节选

but sometimes, if it's too expensive, I don't think it's justified to buy organic.

不过有时候，如果太贵了，买有机食品就不划算了。

在绿色市场 - SpeakingMax英语口语达人