mutual

• adj. 共同的；相互的，彼此的

來自阿拉伯語muttus,交換的，相互的，來自PIE*mei,改變，交換，詞源同mutable,common.

mutual (adj.)

late 15c., originally of feelings, from Middle French mutuel (14c.), from Latin mutuus "reciprocal, done in exchange," from PIE root *mei- (1) "to change, exchange" (see mutable).

That is common which pertains equally to two or more persons or things.
That is mutual which is freely interchanged: mutual love, affection, hatred. The word is sometimes incorrectly used for common: our mutual friend, a phrase of very frequent occurrence, no doubt owing to the perfectly correct 'mutual friendship.'
[J.H.A. Günther, "English Synonyms Explained & Illustrated," Groningen, 1904]

Mutual Admiration Society (1851) seems to have been coined by Thoreau. Mutual fund is recorded from 1950. The Cold War's mutual assured destruction attested from 1966. (Assured destruction was an early 1960s term in U.S. military policy circles in reference to nuclear weapons as a deterrent, popularized c. 1964 by Robert McNamara, U.S. Secretary of Defense under Lyndon Johnson, e.g. statement before House Armed Services Committee, Feb. 18, 1965; the mutual perhaps first added by Donald Brennan, conservative defense analyst and a public critic of the policy, who also noted the acronym MAD.)

mutual (n.)

short for mutual fund, 1971; see mutual.

1. It's plain that he adores his daughter, and the feeling is mutual.

明擺著他很喜歡自己的女兒，而且女兒也喜歡他。

來自柯林斯例句

2. He left the company by mutual consent last September.

去年9月，經雙方同意，他離開了公司。

來自柯林斯例句

3. The campaign has abounded in mutual accusations of uncivilised behaviour.

整個活動中雙方頻頻指責對方粗野。

來自柯林斯例句

4. She learned her insurance had been canceled by Pacific Mutual Insurance Company.

她得知自己的保險已經被太平洋互助保險公司中止了。

來自柯林斯例句

5. They do, however, share a mutual interest in design.

不過他們確實都對設計感興趣。

來自柯林斯例句