他们难以控制收益，但是测试结果表明利润也相当可观：曾有组合达到10%的年收益率。

The return would be out of their hands, but tests suggest profits can be decent: 10% a year in one example.

youdao

他们难以控制收益，但是测试结果表明利润也相当可观：曾有组合达到10%的年收益率。

The return would be out of their hands, but tests suggest profits can be decent: 10% a year in one example.

youdao