铁钉在潮湿的环境中会逐渐氧化生锈。

Iron nails will start ___oxidising and rusting in damp conditions.

铜在潮湿的空气中更容易氧化。

Copper ___oxidises more easily in humid air.

这些铁钉暴露在潮湿空气中会氧化生锈。

These iron nails will start ___oxidising when exposed to moist air.