以下为句子列表：
英文: He thinks Microraptor used its hind wings only for gliding, folding them out of the way for powered flight.
中文: 他认为，顾氏小盗龙仅仅用后翼来滑翔，在加力飞翔时，便折叠起来，以免挡道。
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英文: Researchers originally suggested that Microraptor spread both arms and legs to the sides of its body to form two pairs of gliding wings.
中文: 研究人员最初认为，顾氏小盗龙从身体两侧伸展出前肢与后肢，形成两对滑行翼。
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