A fertile, verdant place in a barren. Sandy desert.

(沙漠中之)绿洲。

Something (as a place of refuge or a time of relaxation) existing or occurring in an isolated way (as in the midst of surrounding dreariness or monotony or tiresomeness) and affording welcome refreshment or relief or contrast.

(苦闷单调疲累中所寻得的)避难所；稍可喘息的时光。