radon
/ˈɹeɪdɒn/
A colorless, odorless gas from the ground.
“Some radon seeped into the basement from the soil.”
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inoh
inoh
/ˈɹeɪdɒn/
A colorless, odorless gas from the ground.
“Some radon seeped into the basement from the soil.”
新增到 My Deck