Examples
shù mù树木pái排chū出yǎng qì氧气，xī shōu吸收èr yǎng huà tàn二氧化碳。
树木排出氧气，吸收二氧化碳。
Trees give off oxygen and absorb carbon dioxide.
平流层的臭氧会吸收紫外线。
The ozone in the stratosphere absorbs ultraviolet radiation.
我想知道这些物质是怎么被人体吸收的。
I would like to know how these substances are absorbed by the body.