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They received a shot of genes near their retinal cells to repair their light receptors.

他们接受了视网膜细胞附近的基因注射，以帮助修补他们的光受体。

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A new polymer material that can repeatedly heal itself at room temperature when exposed to ultraviolet light presents the tantalizing possibility of products that can repair themselves when damaged.

一种新的聚合物材料在室温紫外光照射下可以不断地进行自我恢复，这一特性表示日后的产品在受损后也可以自我修复。

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Both carriageways of the road were reopened by 15:00 BST on Saturday after work took place to repair power lines hit by the light aircraft.

BBC: A1 in Cambridgeshire reopens after fatal plane crash

The governor there dispatched the National Guard to assist rescue efforts, and Connecticut Light and Power had begun dispatching crews to repair the electrical grid now that winds had subsided.

FORBES: Overnight Sandy Roundup: East Coast Reeling As Hurricane Leaves 6 Million Without Power

The ceiling is shoulder height, and you are trying to repair a piece of heavy machinery by the light of a small torch.

ECONOMIST: Ukraine