painless
adj.
1560s, from pain, n. + -less. Related: Painlessly; painlessness.
〔李〕[pain n. 痛苦；-less →] a. free from pain；causing no pain无痛（苦）的；不痛的
〔李〕[pain n. 痛苦；-less →] a. free from pain；causing no pain无痛（苦）的；不痛的
| 词汇 | painless |
| 词根词缀 | Online Etymology Dictionary 词根李平武蒋争 painless adj. 1560s, from pain, n. + -less. Related: Painlessly; painlessness. 〔李〕[pain n. 痛苦；-less →] a. free from pain；causing no pain无痛（苦）的；不痛的 |
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