toss-up的词源

英文词源

toss-up (n.)

"even matter," 1809, from earlier sense of "a flipping of a coin to arrive at a decision" (c. 1700), from verbal phrase, from toss (v.) + up (adv.).

中文词源

toss-up：机会均等

比喻用法，原指掷硬币。

该词的英语词源请访问找单词词源英文版：toss-up 词源，toss-up 含义。