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n (1)(男)伙伴，(男)同(事)伴(male fellow worker，companion or friend)[C](infml)(構(gòu)成復(fù)合詞)：We've been old～s for years.我們是多年的老同事。He had a drink with his～after work.他下班以后與工友一起喝了幾杯?！纪絧al，friend，companion;

(2)助手(young person who helps a skilled worker;partner)[C]：a carpenter's/plumber's/builder's/surgeon's～木工/管工/建筑工/外科醫(yī)生的助手;needs more help from one's～to finish the job需要助手更多的幫助以完成工作;

(3)(商船船長(zhǎng)的)副手(officer on a merchant ship ranking below the captain)[C]：the first/second/third～(=first/second/third officer)大/二/三副;The～gave orders to swab the decks.大副命令擦洗船板。

(4)一對(duì)鳥(niǎo)(獸)之一(an animal's sexual partner，either of a bird or an animal)[C]：Swans keep the same～throughout their life.天鵝一生無(wú)異偶。

→′roommates 室友;′classmates 同學(xué);′teammates 隊(duì)友;′playmates 玩伴;

v 交配(尤指動(dòng)物)(cause bird，animals to come together for breeding)[I，I+prep(with)，T+n，T+n+prep(with)]：The bears have～ed and produced a cub.熊交配后產(chǎn)下一仔。The majority of amphibians～in winter. 大部分兩棲動(dòng)物在冬天交配。Many animals～in spring.許多動(dòng)物在春天交配。an experiment in which mice are～d with rats 鼠與大鼠交配的實(shí)驗(yàn);～cats讓貓交配;～a blue bird with a yellow one讓藍(lán)鳥(niǎo)與黃鳥(niǎo)交配;Some vigorous mature rams～successfully with nearly 100 ewes in a season.一些體力充沛的成年公羊在一個(gè)季節(jié)內(nèi)能交配100頭母羊。the～ing season/call(動(dòng)物)交配季節(jié)/交配呼叫;

→′mating n(鳥(niǎo)，獸的)交配(尾);′mateless adj 無(wú)配偶的