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。
在非洲生活可能是艰苦的。
You'll be hard pushed to finish this today.
要你今天做完这件事会很难。
You would be hard-pressed to find a better secretary.
找一位更好的秘书很难。
This year the airline will be hard-pressed to make a profit.
今年航空公司将很难盈利。
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。
If the water's cloudy like that, it'll be hard to see anyone underwater.
如果水浑浊成那样，就很难看得到水下的人。
It will be hard to work today—specially when it's so warm and sunny outside.
今天无心工作—尤其是外面这样风和日丽。
A topic-based approach can be hard to assess in schools with a typical spread of ability.
在以典型的能力多元化为特征的学校里很难评估一种基于话题的教学方法。
在线学习可能很困难。
Making new friends can be hard too.
结交新朋友也很难。
If you want to be a postman, you should be hard-working.
如果你想做邮递员，你应该要勤劳。
Exercising can be hard but RunKeeper will help you every step of the way.
锻炼可能很难，但运动日志会帮助你做到每一步。
In his introduction, he made it clear that our credits would be hard-earned.
在他的介绍中，他明确表示，我们的学分将会很难取得。
Food safety is another problem: it can be hard to know where the food comes from.
食品安全是另外一个问题：很难知道食品来源。
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。
Dogs like Shaynee help patients feel calm and at peace which can be hard in a busy hospital.
像谢尼这样的狗可以帮助病人感到平静和内心平和，通常这一点在医院这种繁忙的环境下是很难做到的。
We form the good habit, which would be hard to break even if we wanted to break it.
我们形成了好习惯，即使我们想要摒弃它也很难。
He didn't want to lose them, but he knew it would be hard for them to stay close.
他不想失去他们，但知道与他们保持亲密关系会很难。
I do get real speaking roles, but work can be hard to come by if you're not a popular star.
我的确拿到了有台词的角色，但如果不是人气明星，可能很难拿到这份工作。
If the sea animals eat them by mistake, the rubbish will be hard to digest and stay in their stomachs forever.
如果海洋动物不小心吃了它们，垃圾很难被它们消化，会永远留在它们的胃里。
It is also the key to understanding the thoughts and feelings that common people have, which may be hard to express.
它也是理解普通人难以表达的想法和感受的关键。
Her parents thought her life would be hard, but Sarah could live on her salary and still saved $5,000 in a year.
她的父母认为她的生活会很艰难，但莎拉可以靠她的工资生活，而且一年内还能存下5000美元。
These days you'd be hard pressed to find anyone in Australia over the age of 15 who doesn't own a mobile phone. In fact, plenty of younger kids have one in their pocket.
如今，在澳大利亚，你很难找到15岁以上的没有手机的人。事实上，很多更小的孩子口袋里都有一个手机。
在莫斯科生活可能会很艰难。
Choosing a right career can be hard.
选择合适的职业可能很难。
And I guess that can be hard at first.
我猜这起初挺难的吧。
Choosing the right career can be hard.
选择正确的职业可能很难。
I will not be hard upon you, as you are in trouble.
我不会在你陷入麻烦的时候害你。
Eating a whole pie can be hard if you have just finished a meal.
如果你刚吃完一顿饭，再吃一个完整的馅饼会有些困难。
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