如果留在阳光下、受热或者重复使用几次，可能从塑料瓶浸出化学物质进入水中。
Plastic bottles can leach chemicals into the water if left in the sun, heated up, or reused several times.
但我们知道有害的化学物质被用于塑料中，有些会浸出有害物质危害我们的健康，而且对这些情况我们并非完全了解。
But we know that hazardous chemicals are used in plastics, and some of those plastics will leach chemicals that may be harmful to our health, and we don't know the full extent of that.
使瓶装水远离热源，过热会促进化学品浸出。
Keep bottled water away from heat, which promotes leaching of chemicals.
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