respire

动词 respire:

1. breathe easily again, as after exertion or anxiety
2. undergo the biomedical and metabolic processes of respiration by taking up oxygen and producing carbon monoxide
3. draw air into, and expel out of, the lungs
   同义词：breathe, take a breath, suspire

re.spire

v.（动词）
re.spired,re.spir.ing,re.spires
v.intr.（不及物动词）
To breathe in and out; inhale and exhale.
呼吸：吸气和呼气；吸入和呼出
To undergo the metabolic process of respiration.
进行呼吸代谢进程
To breathe easily again, as after a period of exertion or trouble.
松口气：重新轻松地呼吸，如经历了一个费力或困难的阶段后
v.tr.（及物动词）
To inhale and exhale (air); breathe.
呼吸：吸入和呼出（空气）；呼吸

来源：
Middle English respiren [to breathe again]
中古英语 respiren [再呼气]
from Latin respor3re
源自 拉丁语 respor3re
re- [re-]
re- [.再、又.]
spor3re [to breathe]
spor3re [呼吸]