...Search for mates provides the chief motivation for wandering... 
Henry S. Fitch 「Ecological Observations on the Woodrat, Neotoma floridana」
...On two occasions he ledchases against strange wolves and demonstratedthe highest motivation (see below)...
L. David Mech 「Ecological Studies of the Timber Wolf in Northeastern Minnesota」
...For our poet's lack of sense of proportion, and for his carelessness in the proper motivation of many episodes, no apology can be made...
Chretien DeTroyes 「Four Arthurian Romances」
ランダム例文：
hearten choker spasmodically
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