在你进入家中之前先脱鞋，你就防止了这些有害化学物质入内。
By kicking off your shoes before you enter the home, you are denying entry to these harmful chemicals.
有害垃圾包括灯、电池及其他含有有害化学物质的物品。
Harmful garbage includes lamps, batteries, and other things with harmful chemicals.
该组织对有害化学物质的排放制定了严格的规定。
The organization has set strict rules on the release of harmful chemicals.
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