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1.ozone n. [化学] 臭氧；新鲜的空气
They will press for international action to safeguard the ozone layer.
他们将督促国际社会采取行动保护臭氧层。
2.humidity n. [气象] 湿度；湿气
The humidity of soil helps to grow.
土壤潮湿有助于植物生长。
3.planetarium n. 天文馆；行星仪
The motions of the stars can be approximated in a planetarium.
星星的运动可在天文馆里模拟。
4.stratosphere n. 同温层；最上层；最高阶段
This was enough to launch their careers into the stratosphere.
这足够将他们的事业推上顶峰了。
5.ultraviolet adj. 紫外的；紫外线的 n. 紫外线辐射，紫外光
The sun's ultraviolet rays are responsible for both tanning and burning.
太阳的紫外线是皮肤晒黑和晒伤的原因。
