剩下的一些延迟消退的很慢，比如铯、碘、锶和氩。

Others decay more slowly, like some cesium, iodine, strontium, and argon.

该结构说，一旦在环境中扩散，铯-137“就是无法避免的。”

Once dispersed in the environment, it says, cesium-137 “is impossible to avoid.

其中一个样品中还检测到了放射性的铯-137，但是还在法律限定标准之下。

Radioactive caesium-137 also appeared in one of the samples, but at levels below the legal limit.

When you melt them, cesium melts at about 28 degrees centigrade, gold melts at 1063.

当你把它们熔融时，铯在28度就熔化了，金在1063度才熔化。

Cesium versus gold is the same delta electronegativity difference.

铯和金,具有相同的电负性差。