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.

《柯林斯英汉双解大词典》

出生后即出现，以后常保持稳定不变。

After birth, after that appear often remaining constant.

youdao

法律必须保持稳定但却不能一成不变。

Law must be stable and it cannot stand still.

youdao

如果对于欧洲和美国经济增长的货币相对比率保持稳定，欧元兑美元1.3758的汇率水平保持不变。

Euro currency at 1.3758 to the USD, and is certainly sustainable given the relative ratios of monetary pumping to economic growth between Europe and the US.

youdao

如果对于欧洲和美国经济增长的货币相对比率保持稳定，欧元兑美元1.3758的汇率水平保持不变。

Euro currency at 1.3758 to the USD, and is certainly sustainable given the relative ratios of monetary pumping to economic growth between Europe and the US.

youdao