It's a hard skill to make the hole.

钻洞是个很难的技术活。

youdao

For me this was a hard skill to master.

对我而言，这是一个很难掌握的技巧。

youdao

That is a hard skill.

这是项难以掌握的本领。

youdao

The Chinese workers became known for their skill and hard work.

VOA: special.2010.03.03

Most of the luck is bad; it's hard to succeed, and with some combination of luck, skill, determination and hard work all of that will decide which of these farmers will be successful and which will not.

靠投机取巧是很难成功的,只有包含着运气,能力,意志和勤奋的所有因素才能角逐出,哪些农民会获取成功,哪些会遭受失败

耶鲁公开课 - 古希腊历史简介课程节选

"I think professional workers and their employers are going to come to appreciate and understand networking as more of a hard skill than a soft skill, " she says.

CNN: Professor of networking on the power of schmoozing

It said some workers aged over 65 or those on fixed term contracts would continue to be employed if their roles were of a "specialist or hard to recruit skill".

BBC: NEWS | UK | England | Cornwall | Over-65s at trust face job cuts

You put your talent, education, wisdom, skill, and hard work into your joint adventure with another person.

FORBES: How to Achieve Financial Independence