exertion
n.
1660s, "act of exerting," from exert + -ion. Meaning "vigorous action or effort" is from 1777.
| 词汇 | exertion |
| 词根词缀 | Online Etymology Dictionary exertion n. 1660s, "act of exerting," from exert + -ion. Meaning "vigorous action or effort" is from 1777. |
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