...They are of flatstones, with cement gutters... 
Richard Harding Davis 「The Congo and Coasts of Africa」
...Bill proportionately narrower than in the River or Bay Ducks; gutters on its sidesless developed; scales on front of tarsus rounded...
Frank M. Chapman 「Color Key to North American Birds」
...Creeks—in summer dry gutters of baked clay—were now rich red rivers;and the yellow Yarrowee ran full to the brim, keeping those who livedhard by it in a twitter of anxiety...
Henry Handel Richardson 「Australia Felix」
...Theseplains had deep water-worn gutters leading into the valley, so that Iconclude the lateral floods it receives are as copious as those from thehills...
Charles Sturt 「Expedition into Central Australia」
ランダム例文：
colonies scours belvedere
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