1640s, "to evaporate through the pores," a back-formation from perspiration and in part from Latin perspirare "to breathe, to blow constantly" (see perspiration). Meaning "to sweat" is a polite usage attested from 1725. Medical men tried to maintain a distinction between "sensible" (sweat) and "insensible" perspiration:
[I]t is sufficient for common use to observe, that perspiration is that insensible discharge of vapour from the whole surface of the body and the lungs which is constantly going on in a healthy state; that it is always natural and always salutary; that sweat, on the contrary, is an evacuation, which never appears without some uncommon effort, or some disease to the system, that it weakens and relaxes, and is so far from coinciding with perspiration, that it obstructs and checks it. [Charles White, "A Treatise on the Management of Pregnant and Lying-in Women," London, 1791]
Related: Perspired; perspiring.
实用例句
1. People considered it as an honor to pay strength and perspire for it.
大家把为大桥出的一点力,流的一点汗,当作光荣和幸福.
来自《简明英汉词典》
2. He began to perspire heavily.
他开始大量出汗。
来自辞典例句
3. He began to perspire as he climbed the hill into Highgate.
当他爬上山坡,到达海格特时,已是汗流浃背了.
来自辞典例句
4. Stimulate the hair to be toughness, balance the perspire the sedum.
平衡皮脂分泌,健胸丰胸,刺激、强健头皮,护发 、 生发.
来自互联网
5. Does the back after old person summer perspire easily what reason?
