Other handy features include an ergonomic Venturi lever to reduce grit ingress, a new purge button that is self clearing and a new silicone exhaust valve to improve breathing performance.

其他方便的功能还包括一个符合人体工程学的手柄，以减少砂砾丘入口，一个新的清除按钮，是自清算和新的硅排气阀，以改善呼吸性能。

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In children, those signs include difficulty breathing; bluish skin color; flu symptoms that begin to improve, then return with fever and worse cough; and fever with a rash.

对儿童来说，这些症状包括呼吸困难；皮肤颜色变青；流感症状开始改善，然后又出现发热和咳嗽加剧；以及伴有皮疹的发热等。

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I have also incorporated yoga into my daily routine to improve my breathing and flexibility.

我每天还把瑜伽糅合到我的训练中来提高我的呼吸效率和身体灵活性。

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President Mwanawasa has undergone an operation to improve his breathing, and is in intensive care at the Percy military hospital.

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Keep calm and carry on practicing your breathing to improve.

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Relaxation, meditation and breathing skills can improve the chances of surmounting one's distress.

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