breath invt.吸入breathn.呼吸；气息Breath acupuncture reinforcing and reducing呼吸补泻Breathing Equipment Development for Fireman消防用呼吸装置发展的趋势breath-operated environmental control unit呼吸操纵环境控制器breathable multi-micro porous coated fabrics透气多微孔层压膜织物Breathing has become increasingly difficult.我呼吸越来越困难。breathing/relaxation/stretching exercises呼吸/放松/伸展运动