Automobile exhaust tetraethyl lead is a highly toxic substance.
汽车尾气中的四乙基铅是剧毒物质。
Singlet oxygen, a byproduct of the photosynthetic process by which certain cells convert sunlight into energy, is a highly toxic and reactive substance that tears cells apart.
单态氧是特定细胞在其光合作用过程中的副产物之一,而细胞通过这一过程将光转化为能量。该物质具有很高的毒性,同时也是一种可使细胞破碎的活性物质。
Singlet oxygen, a byproduct of the photosynthetic process by which certain cells convert sunlight into energy, is a highly toxic and reactive substance that tears cells apart.
单态氧是特定细胞在其光合作用过程中的副产物之一,而细胞通过这一过程将光转化为能量。该物质具有很高的毒性,同时也是一种可使细胞破碎的活性物质。
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