单词	terra firma
释义	terra firmater‧ra fir‧ma /ˌterə ˈfɜːmə $ -ˈfɜːr-/ noun [uncountable] Word Origin WORD ORIGINterra firma Origin: 1600-1700 Latin ‘firm land’ Examples EXAMPLES FROM OTHER DICTIONARIES We were glad to be back on terra firma again. EXAMPLES FROM THE CORPUS The rain seeps down through the snow and forms a bit of terra firma when the temperature plummets. Their celestial explorations are firmly rooted where they are, on terra firma. land, rather than sea or air – used humorously:  We were glad to be back on terra firma.
随便看	simulacrum simulate simulated simulation simulator simulcast simultaneous simultaneously sin Sinai Sinai, Mount Sinatra, Frank Sinbad sin bin since sincere sincerely sincerity Sinclair C5 Sinclair, Sir Clive Sinclair, Upton Sindbad sine sinecure sine qua non

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