It might also be hard for airlines to co-ordinate the departure times and destinations of passenger aircraft in a way that would allow them to gain from formation flight.

航空公司可能也很难协调客机的起飞时间和目的地，使它们能够从编队飞行中获益。

youdao

It must be hard for her, bringing up four children on her own.

她一个人抚养四个孩子一定很艰难。

《牛津词典》

If a rider is too heavy, it will be hard for the motorcycle to take off.

如果骑车人太重，摩托车就很难起飞。

youdao

"Without some form of market incentive,we believe it will be very hard for them to keep conserving these forests."

VOA: standard.2009.12.17

For example, imagine-- this shouldn't be hard for most of you-- imagine that you are an evil git, but you know that the person you're playing against is an indignant angel.

比如,你们把自己想象成饭桶恶魔,这对你们来说不难,但是你知道你的对手是个愤怒天使

耶鲁公开课 - 博弈论课程节选

If somewhere later on in the code it shifts to string, I might not be manipulating that and getting actual values out, but not what I wanted, and it's going to be really hard for me to chase it back.

然后后面的一些代码,把变量类型变为了字符串，我可能不会通过实际操作,去取得实际的变量的类型，但是这并不是我想要的类型,而且对我来说把类型，变回去也很困难。

麻省理工公开课 - 计算机科学及编程导论课程节选

"It's going to be hard for them to find that critical density of shows, " he says.

FORBES: Why Grow Up?

Without local government support, it would be hard for BYD to have any success.

FORBES: BYD's Electric Taxis Hit Shenzhen's Streets

The proposal is nonbinding, but it could be hard for directors to ignore if it passes.

WSJ: What-Ifs for Goldman Sachs