Artificial intelligent assistant

terra firma

terra firma
/ˌterə ˈfɜ:mə; `tɛrə`fəmə/ dry
land; the ground (contrasted with water or air) 陆地, 大地(与水或空中相对)
    glad to be on terra firma again, eg after a trip by boat or aeroplane 又回到陆地上, 很高兴(如下船或下飞机时).

牛津英汉双解词典

edrTRBnvbvbfdvEzudIdQg1m88q5imAx0fJs98kZOqu6gcmlb31bzg 9e4d60624a719b0b21cbb788383d02e4