The blowing back through the stem is alternated with regular, but very slight puffs (sips and kisses) so that the whole process of smoking seems as natural, regular and effortless as breathing.

轻轻的吸烟（如同轻啜和亲吻）与将烟回吹到烟嘴的动作有规律地来回交替，这样整个吸烟的过程就像自然，经常而又轻松的呼吸一样。

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Lying flat on your back, for instance, may be good for the lower back but can exacerbate digestive and breathing problems and snoring.

WSJ: Find the Perfect Sleep Position

DiFrancesco, overcome with smoke, turned back up the stairs, but Clark -- breathing and seeing "as if I had a bubble over my head" -- soldiered on.

CNN: An improbable escape

He went back to the hospital a number of times with breathing problems and anaemia but the scan was never reviewed, the solicitors said.

BBC: Coventry hospital pays over Frank Golby lung cancer death