a.

1. 氣喘吁吁的，呼吸困難的
   The climb made him breathless.

   往上爬使他上氣不接下氣。

2. （因興奮、恐懼等）呼吸急促的；屏息的
   The children were breathless as they watched the tightrope act.

   孩子們在看走繩索表演時呼吸都屏住了。

3. 扣人心弦的，令人喘不過氣的
   breathless tension

   令人透不過氣來的緊張

4. 呼吸停止的；死的
   The body lay breathless on the bed: there was no sign of life.

   躺在床上的人停止了呼吸，已經死了。

5. 無風而沉悶的；悶氣的
   the breathless air of a hot summer day

   炎熱的夏日那令人窒息的空氣

adj.

1. gasping for breath, typically due to exertion.
   ▸feeling or causing great excitement, fear, etc.
2. (of air) stiflingly still.