It's incredibly hard to maintain patience at all times with your children.
始终对孩子保持耐心是非常困难的。
It's hard to maintain competitive pricing.
很难保持有竞争力的定价。
These will be hard to maintain.
这些管线很难维修。
这是很难维持。
He works hard to maintain his family.
他努力工作养家。
The code is cumbersome and hard to maintain.
该代码是复杂的且难于维护。
So this friendship is hard to maintain.
这一段友情似乎也难以维持下去了。
Yet even that charge is hard to maintain.
但是他们对价格的控制其实很难维持。
It's very hard to maintain a relationship.
要维持一段关系，是很困难的。
But "management quality" is hard to maintain.
不过“管理质量”很难维持。
Ex. He works very hard to maintain his family.
他为了养家很努力地工作。
The templates become complex and hard to maintain.
这样模板会变得非常复杂而难以维护。
Clearly, it will be hard to maintain the cluster above.
有一点非常清楚，上面的集群非常难以维护。
Also tried very hard to maintain the antique buildings.
也对古建筑大力维护。
On the technical side, telegraph lines are hard to maintain.
从技术角度来说电报线路难以维修。
If you did not respond, this friendship is hard to maintain.
如果你没有反应，这一段友情似乎也难以维持下去。
Peace is hard to maintain, because there are two sides to it.
和平是很难维持的，因为那是双方面的。
This difference in lift can make it hard to maintain level flight.
这种差异能够产生保持直升机水平飞行的升力。
It will, of course, be hard to maintain this pace in the immediate future.
当然，在不久的将来很难保持这种增长速度。
These types of processes were hard to maintain, configure, and follow.
这些过程类型很难被维护、配置和遵循。
It might also indicate that the type or method might be hard to maintain.
这也表示该型别或方法可能难以维护。
The entire staircase is made from porcelain tiles that are not hard to maintain.
整个台阶部分是由易于维护的瓷砖制成。
Chinese communities worked hard to maintain Chinese culture and traditions.
华人社区的工作，努力维护中国的文化和传统。
If the world all becomes overpopulated it will be hard to maintain civilization.
如果世界人口过度增长，文明就很难维持。
It's kind of hard to maintain a marriage when you spend more time apart than you do together.
俩人要总是聚少离多，那维持一段婚姻可不是件容易的事儿。
It's kind of hard to maintain a marriage when you spend more time apart than you do together.
俩人要总是聚少离多，那维持一段婚姻可不是件容易的事儿。
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