1. The actinism of the sun's rays can cause damage to the skin if not properly protected.(如果不做好保护措施,太阳光的辐射就会对皮肤造成损害。)
2. Ultraviolet light possesses actinism, which can be harnessed for certain chemical reactions.(紫外线具有化学活性,可以用于某些化学反应。)
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