Data from the high-resolution flight images allowed the researchers to create a near-perfect mathematical model of how the flexible, twisting wings propel the insect through the air.
由高分辨率飞行影像取得的数据使得研究人员能够建立近乎完美的数学模型，来揭示那柔软的、扭转的翅膀怎样推动昆虫穿过空气。
As she spoke thus, she was twisting the bill about in her hands with an embarrassed air, and making creases in it with her nails.
她一面这样说，一面带着为难的样子，把那张账单拿在手里翻来复去，并用指甲掐着它，折了又折。
As they flew over the dark, twisting lane down which they had walked earlier, Harry heard, over the whistling of the night air in his ears, Dumbledore muttering in some strange language again.
他们飞过先前走过的那些漆黑的、蜿蜒曲折的小巷，晚风在哈利耳边呼啸掠过，在这声音之外，他听见邓布利多又在用某种奇怪的语言低声说着什么。
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