Yeah, I want to buy an ETF tracking a certain index, and I find that there are 20 ETFs that do the same thing.

是的， 我想购买追踪某个指数的 ETF，我发现有 20 只 ETF 做同样的事情。

Brilliant. Now we talk a lot on the Money Clinic podcast about passive investing, investing when you're tracking an index and using index funds to do that. But how are ETFs different?

杰出的。现在，我们在 Money Clinic 播客上谈论了很多有关被动投资、跟踪指数时进行投资以及使用指数基金来做到这一点的内容。但 ETF 有什么不同呢？