ozone
/ˈəʊzəʊn/
A gas that protects Earth from harmful sun rays.
“The ozone layer protects us from the sun's harmful rays.”
添加到 My Deck
/ˈəʊzəʊn/
A gas that protects Earth from harmful sun rays.
“The ozone layer protects us from the sun's harmful rays.”
添加到 My Deck