Reptiles have placodes too. But in a reptile embryo each placode switches on genes that cause only the skin cells on the back edge of the placode to grow, eventually forming scales.

爬行动物身上同样存在基板，但在胚胎阶段时，它们只会触发基板后延的皮肤细胞基因进行增殖，并最终形成鳞片。

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When she got back, things were starting to get better for her, Jane said. She visited Jane at college, forming the best and last memories that Jane has of her only sibling.

Jane说，Mary回来的时候，病情开始有了好转，还去Jane的学校看望了姐姐,可是这也成为了Jane拥有的最美好也是最后的记忆。

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The opposite is also true: When there is more ice it reflects more solar energy back into space, and cools the Arctic down, which leads to more sea ice forming.

相反也是如此：当冰雪较多时，它就把更多的太阳能反射回太空，使北极变冷，从而形成更多的海冰。

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While the screen's surface is completely flat, the edges curve around gently, forming a rounded back.

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He became a crucial part of the England pack of the early 1990s, forming a formidable back row alongside Peter Winterbottom and Mike Teague, as they dominated the Five Nations.

BBC: SPORT | Rugby Union | English | A Leicester legend

Goldberg believes that his clients are quickly being moved to the back of any line that is forming to pay creditors from the few assets that exist.

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