What is the translation of " IT IS DIFFICULT TO MAINTAIN " in Chinese?

• 很难保持
• 很难维持
• 难以保持
• 是难以维持

Examples of using It is difficult to maintain in English and their translations into Chinese

It is difficult to maintain that momentum.
困难的是保持这样的势头。

If a child is only a hobby, it is difficult to maintain long-term happiness.
如果宝宝仅有一种爱好，就很难保持长久的快乐感觉。

It is difficult to maintain a constant temperature.
很难保持温度恒定。

If a child is only a hobby, it is difficult to maintain long-term happiness.
一个孩子如果仅有一种爱好，就很难保持长久的快乐感觉。

It is difficult to maintain the physical strength.
此外，很难保持体力。

If there are one or two such characters in a team, it is difficult to maintain unity.
团队中若有一两个这样人物，很难保持团结。

As such, it is difficult to maintain records.
因此很难保持这方面的记录。

If there are one or two such characters in a team, it is difficult to maintain unity.
一个团队中如果有一两个这类人物，很难保持团结。

Of course, it is difficult to maintain the operation of the song list as an important asset.
当然，很难维持歌唱列表的运作作为重要资产。

If there are one or two such characters in a team, it is difficult to maintain unity.
一个团队中如果有一两个这样人物，很难保持团结。

Because it is too precise, it is difficult to maintain, and it may cause malnutrition, but it will affect health.
因为太精确既难以坚持，又可能造成营养不良，反而影响健康。

Over the last two years these players have won so much and it is difficult to maintain that level.”.
在过去的两年里，这些球员赢了这么多，很难保持这个水平。

Do not eat breakfast, it is difficult to maintain the body's normal blood sugar levels, hypoglycemia will directly affect work, study and body.
不吃早餐，就会很难维持体内正常的血糖水平，出现低血糖，直接影响着工作、学习和身体。

Increasingly this darkness falls around us, and it is difficult to maintain eternal perspective.
越来越这黑暗降临在我们身边，而且很难保持永恒的观点。

Do not eat breakfast, it is difficult to maintain the body's normal blood sugar levels, hypoglycemia will directly affect work, study and body.
不吃早餐，就很难维持体内正常的血糖水平，就会出现低血糖，直接影响工作、学习和身体。

The scope of application is smaller than that of PVC, it is difficult to maintain and wear resistance.
应用范围比PVC小，难以保持和耐磨。

Do not eat breakfast, it is difficult to maintain the body's normal blood sugar levels, hypoglycemia will directly affect work, study and body.
不吃早餐，就很难维持体内正常的血糖水平，会导致低血糖，直接影响工作、学习和身体健康。

During exercise amino acids become more important as it is difficult to maintain the desired levels from food alone.
氨基酸在运动中更为重要，因为单靠食物是难以维持所需的量。

It is difficult to maintain international peace and security without reaching common and practical solutions through negotiation and, subsequently, collective agreements through negotiation.
要通过谈判，及随后通过协商达成集体协议，来达成共同和切实可行的解决方案，否则很难维持国际和平与安全。

Rising costs of raw materials, so many paint companies overwhelmed, it is difficult to maintain normal operation.
随着原材料成本的不断上涨，让不少涂料企业不堪重负，难以维持正常的经营。

Even in the event of war- during which it is difficult to maintain balances- this is not permitted in Islam.
即使在战争当中--这时候很难保持平衡--伊斯兰也不允许这样做。

They manage it for a while, but their lack of experience and skill in that area makes it is difficult to maintain.
他们管理了一段时间，但他们在这方面的经验和技能的缺乏，使得它难以维持。

When you're moving from place to place it is difficult to maintain a workout routine, and many of us slack off.
当你从一个地方移动到另一个将是难以维持运动习惯，和我们很多人懈怠了。

When polishing with 8000 abrasive paste, the common load is 100~200g/cm2, but it is difficult to maintain the accuracy of this load.
用磨料膏抛光时,一般载荷为100~200g/cm2,难以保持载荷的准确性。

When children wear this kind of sandals, it is difficult to maintain balance and it is easy to fall and fall.
儿童穿着这种凉鞋跑跳时，身体难以保持平衡，很容易绊脚摔倒受伤。

When polishing with 8000 abrasive paste, the common load is 100~200g/cm2, but it is difficult to maintain the accuracy of this load.
用8000研磨膏抛光时，通常的载荷为100~200g/cm~2，但很难保持该载荷的精度。

And without agriculture environmental and resource issues be solved, it is difficult to maintain sustainable economic development.
不解决环境和资源问题，又难以保持经济持续发展。

Given my state of cultivation, it was difficult to maintain this rhythm.
鉴于我的修炼状态，很难保持这种节奏。

It's difficult to maintain physical strength.
此外，很难保持体力。

It's difficult to maintain, and very expensive.
这很难维持，而且非常昂贵。