Increasing the scale of this sort of operation is tricky, as the formal economy is often shallow and the middle class small.

扩大这种经营模式的规模需要慎行，因为形式经济学经常失于浅薄，而且中产阶级规模小。

youdao

As you can see by my examples the Random class is quite easy to use, but at the same time kind of tricky.

通过列子你可以看到随机数的使用是很简单的。

youdao