維持

這個行業靠政府津貼而得以維持。
   This industry depends for its survival on government subsidies.

空難事件的幸存者以野果維持生命。
   Survivors of the air crash subsisted on wild fruits.

船在岩石上擱淺,船夫在遇救前只好靠活魚維持生命。
   The boat stranded on the rocks and the boatman had to sustain himself with live fish before rescue came.