Toxic chemicals are everywhere in our lives—insect-killing chemicals used on public grass areas, cleaning chemicals on the floors of public areas.

有毒化学物质在我们的生活中随处可见，比如公共草地上用于杀虫的化学制剂，以及公共区域地板上用于清洁的化学物质。

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Toxic chemicals are everywhere in our lives—insect-killing chemicals used on public grass areas, cleaning chemicals on the floors of public areas.

有毒化学物质在我们的生活中随处可见，比如公共草地上用于杀虫的化学制剂，以及公共区域地板上用于清洁的化学物质。

youdao