In an ideal world, where you can borrow and lend freely, an individual could choose consumption along any point on this line.

在理想情况下,你可以随意借贷,每个人都可以将这条线上任意一点,作为自己的消费额

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putting it with regular clothes to make it dressed down. But you can dress it up with heels.

跟日常的衣服搭在一起，显得随意一点。不过，你可以搭双高跟鞋。

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The "is it okay" question is very useful at making your speech a little less casual.

is it okay”问句可以用来让你的对话变得随意一点。

Is it okay 课堂 - SpeakingMax英语口语达人