For each piece you need to have a margin of some sort.

每件你需要有某种形式的保证金。

youdao

We would also like to have some information on buying it on margin.

另外，我们想知道哪些资料买了可以有赚头。

youdao

We would also like to have some information on buying it on margin.

另外，我们想知道哪些资料买了可以有赚头。

youdao