单词	air billow
释义	air billow noun : a wave at the interface of two horizontal layers of air caused by their difference in velocity Word History First Known Use 1893, in the meaning defined above
随便看	sure of oneself sure thing sure things sure-enough sure-footed sure-footedly sure-footedness sure-handed sure-handedness surefire surefootednesses surelier sureliest surely surely you jest sureness surenesses surer sures sures pardos sureseater surest surest bet sureties surette

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