...Dave refused to run quietly on the trail behind thesled, where the going was easy, but continued to flounder alongside in the softsnow, where the going was most difficult, till exhausted... 
Jack London 「The Call of the Wild」
...At this period the nativesof the Gambia, like those of Ceylon, resort to the river, andsecure the fish in considerable numbers as they flounder in thestill shallow water...
J. Emerson Tennent 「Sketches of the Natural History of Ceylon」
...So tightly bogged down that it later tookthe efforts of six farm-hands to extricate him, thebull continued to flounder and to bellow...
Albert Payson Terhune 「Lad: A Dog」
...Most ducks walkawkwardly and fall down and flounder about helplessly when they try torun...
John H. Robinson 「Our Domestic Birds」
...I never rode over such a piece ofground in my life, but we managed to flounder through it, until at lengthwe got on the somewhat firmer but still heavy plain...
Charles Sturt 「Expedition into Central Australia」
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