...After geographical separation took place the initial genetic divergence between the two populations was maintained by means of ecological and ethological isolating mechanisms... 
Juan R. León 「The Systematics of the Frogs of the Hyla Rubra Group in Middle America」
...Circumstanced as we are on the surface of theearth, we have no means of isolating a body from external forces...
Robert Stawell Ball 「The Story of the Heavens」
...I believe itcontinues in a semicircle and joins the lake again, thus isolating thehill I wished to visit...
Ernest Giles 「Australia Twice Traversed, The Romance of Exploration」
ランダム例文：
Chadwick wail chambermaid
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