the state of being out of breath or short of breath, often due to physical exertion or excitement "After running several laps around the track, he experienced breathlessness."
noun [具体名词]呼吸急促,气喘吁吁
By the age of 40, some people are already experiencing breathlessness. 到40岁时,有些人已经感到气绝。
breathlessness
“ -lessness” ⌜ 缺乏某种特性或状态 - indicating the lack of a particular quality or state ~ ⌟