The business is tough, and even tougher when it comes to making toys for girls.

这行业很艰难，要帮女孩设计玩具更是难上加难。

youdao

Running a business is tough, but small wins keep you inspired through the grind because they let you know you're headed in the right direction.

运营一家企业是很艰难的，但是这些小的成就能让你在艰苦的工作中保持热情，因为它们使你知道，你正在朝着正确的方向前进。

youdao

But building a successful business around it is tough, and so far we've only seen clear-cut examples of commercial success in areas where the product category is mature, even commoditized.

但是围绕开源建立一门成功的生意是困难的，到目前为止我们见到的商业成功都出现在非常成熟的产品类别，甚至已经是达到日用品的程度的。

youdao

Starting a business is tough enough without having to learn about, understand and pay lawyers to interpret new rules.

FORBES: Does the Government Hurt Innovation?

Buffett crows about Geico, but the auto casualty business is tough and gaining market share costly and hard won.

FORBES

Starting a business is tough, but it's even more challenging if you're venturing into a new industry at the same time.

WSJ: When It's Time for a Small Business to Bring in a Professional CEO