要是你没有足够的钱，就要问问自己有多少钱就够了，看看你的钱都花在什么地方了。能不能改变这一点？

If you don't have enough money ask yourself what would be enough, look at where your money is currently going and can you change it?

youdao

有你在我身边足够了。

Having you about me is enough.

youdao

除非你营养不良，否则无需补充维生素。而如果你真的有需要，那么一种复合维生素就足够了。

Unless you are nutritionally deficient, you probably don't need a vitamin supplement and if you do, a simple multivitamin is enough.

youdao

That means, when I take two derivatives, I want to get a, then you should know enough calculus to know it has to be something like at^, and half comes from taking two derivatives.

也就是说,当我想求二阶导时,得到了a,你应该有足够的微积分知识,才能知道必须有类似at^的项,而这个1/2则是因为求了两次导数

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