它几乎自古以来都维持不变。
银行保持其贷款利率不变。
身体感到热，可体温保持在升高后的新高度上差不多稳定不变。
The body feels hot and the temperature remains more or less constant at the new elevated level.
理由在变，但对更多树木的渴望是不变的。
The justifications change. The desire for more trees remains constant.
这避免了“特征蔓延”，即需求工作保持不变甚至增加。
This avoids "feature creep", in which requirements work remains constant or even increases.
通常情况下，动物每天内部产生的活动循环继续保持不变。
Typically, the animal's daily internally generated cycle of activity continues without change.
因此，理想的演讲应该是充满事实的、并以不变的单一语调进行的。
Thus the ideal lecture is one filled with facts and read in an unchanged monotone.
农民购买的物品价格保持不变，而他们从自己的产品收到的价钱却下降了。
The prices of the items farmers bought remained constant, while prices they received for their products fell.
我们关心的大多数过程都是在保持压强、温度或体积不变的情况下发生的。
Most processes that we're concerned with will happen with something held constant like pressure or temperature or volume.
无论是英式早餐还是咖啡加三明治，有一样东西是保持不变的，那就是价格。
Whether it's an English-cooked breakfast or a coffee and a sandwich, one thing has remained the same: the prices.
消费者的购买体验正变得越来越复杂，但衡量这些体验的标准基本上保持不变。
The consumer buying experience is growing increasingly more complex, but the metrics to gauge them have remained largely unchanged.
如果训练强度保持不变，却总是感到饥饿并且体重下降，这表明我需要提高每日热量摄入。
If my training intensity remains the same, but I'm constantly hungry and dropping weight, this is a sign that I need to increase my daily caloric intake.
马是分阶段进化的，每一阶段都几乎保持了数百万年的不变，而最终被一种独特的新型马所取代。
Horses evolved in discrete steps, each of which persisted almost unchanged for millions of years and was eventually replaced by a distinctive newer model.
随着时间的推移，妻子不太可能使用破坏性的策略或退缩，而丈夫对这些行为的使用多年来保持不变。
Over time, wives were less likely to use destructive strategies or withdraw, while husbands' use of these behaviors stayed the same through the years.
许多物种似乎在数百万年的化石记录中都保持不变——而这种情况似乎与达尔文的持续变化模型不一致。
Many species appear to remain unchanged in the fossil record for millions of years—a situation that seems to be at odds with Darwin's model of continuous change.
蜗牛或蛤蜊的空壳可能会被留下来，如果足够持久和抗溶解，它可能会在很长一段时间内基本保持不变。
The empty shell of a snail or clam may be left behind, and if it is sufficiently durable and resistant to dissolution, it may remain basically unchanged for a long period of time.
戴安娜声称她对萨姆的爱永远不变。
他指责政府依赖一成不变的政策。
He accused the government of relying on paint-by-numbers policies.
我不喜欢一成不变–我喜欢不断前进。
他最持久不变的特质是孩子般的天真无邪。
挥打蛋清起沫但不变硬。
猫的地盘只在它占据那个地方的时候才保持稳定不变。
The territory of a cat only remains fixed for as long as the cat dominates the area.
很多商人认为，一个相对价格从来不变的地方会是极乐世界。
Many businessmen think that a world where relative prices never varied would be nirvana.
获得各种资格证书的年轻人的数量一直保持不变或者已经减少。
The number of young people obtaining qualifications has remained static or decreased.
如果你先压缩了这些文件，写入光盘时它们就不变成只读文件。
If you zipped the files first, they did not become read-only when written to the CD.
有数支由高薪宣传人员组成的队伍确保这样的消息不变成新闻。
There were battalions of highly paid publicists to see that such news didn't make the press.
厌倦了一成不变的外观？
生活对你来说总是一成不变的。
如今，信息在互联网上传播，但内容不变。
Nowadays, information is being carried on the Internet, but the content remains the same.
如果一种材料经历了物理变化，它的性质不变。
If a material goes through a physical change, it is still the same material.
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