Life on Earth will become unsustainable unless population growth is held in check.
地球上的生命将无法延续，除非人口增长得到控制。
It is also why expectations must be held in check for the coming season.
这也是为什么对新赛季期待有限的原因。
Between the two plates, stresses build up that are held in check by friction.
压力于两个板块间积聚而受摩擦力抑制。
Malthus observed that population was held in check because not every individual would survive to reproduce.
马尔萨斯观察到人口数量总是保持在可控制的范围，因为并非每个个体都有机会繁衍后代的。
The authors of the published papers point out that in other places around the continent, much larger glaciers are also held in check by ice shelves.
发表上述论文的作者们指出，在南极大陆的其他地区，还有更大的冰河正处在冰架的包围和阻挡中。
The population of each of these species is usually held in check by other forces, such as climate, predators or food availability.
每一个物种的数量都受到其他力量的限制，比如气候条件、掠食者的存在和食物的丰富程度。
The authors of the published papers point out that in other places around the continent , much larger glaciers are also held in check by ice shelves.
发表上述论文的作者们指出，在南极大陆的其他地区，还有更大的冰河正处在冰架的包围和阻挡中。
The authors of the published papers point out that in other places around the continent , much larger glaciers are also held in check by ice shelves.
发表上述论文的作者们指出，在南极大陆的其他地区，还有更大的冰河正处在冰架的包围和阻挡中。
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