他仰躺在床上，每一次呼吸都十分困难。

He lay on his back, breathing with great difficulty.

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“当我爬山、运动时，呼吸就十分困难。”她说。

"My breathing was very difficult when I exercised, walking up hills," she said.

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“当我爬山、运动时，呼吸就十分困难。”她说。

"My breathing was very difficult when I exercised, walking up hills," she said.

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