(希腊语中的)不送气音;不送气符号(’);
Of the 37 tested masks from major brands in China, only nine were adequate in filtering air borne pollutants and enabling smooth breathing, said a survey conducted by the China Consumers Association in March 2014.
2014年3月,中国消费者协会展开的一项调查表明,在37个中国主要品牌的测试面罩中,只有2个品牌可以有效过滤空气中的污染物,使得呼吸顺畅。
A regular diet of bird's nest can help alleviate the trachea, smooth breathing, benefit the control of asthma, expel phlegm, recover vital energy and extend longevity.
经常食用燕窝可以帮助缓和哮喘,使呼吸顺畅,有益于哮喘控制,清痰,恢复体能和长寿。
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