underground
/ˌʌn.dəˈɡɹaʊnd/
located beneath the surface of the earth
“The children discovered an underground tunnel while digging in the yard.”
新增到 My Deck
/ˌʌn.dəˈɡɹaʊnd/
located beneath the surface of the earth
“The children discovered an underground tunnel while digging in the yard.”
新增到 My Deck