break down into

Physically the rocks break down into and smaller pieces after.

从物理变化来讲,岩石碎成越来越小的石块.

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Physically, the rocks break down into smaller and pieces.

物理方面, 岩石会风化成小片小片的碎条.

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Physically, the rocks break down into smaller and smaller pieces.

物理上, 这些岩石分解成很多小碎片.

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Hess: People break down into two groups when the experience something lucky.

格雷姆·海斯: 幸运垂青之后,人会分为两种.

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Overtime it can also break down into the soil without giving out any toxic chemicals.

而且,它还可以降解,不会产生有毒的化学物质.

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This chart shows us that the plastic can't break down into the soil.

上图为混入土壤中难降解的塑料薄膜.

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