鹰可以滑翔数小时而不拍打翅膀。
Hawks can ___soar for hours without flapping their wings.
滑翔机轻松地在山谷上空翱翔。
The glider ___soared effortlessly above the valley.
经济危机期间，失业率急剧上升。
Unemployment rates ___soared during the economic crisis.
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