commute
v 交换；坐公共交通车上下班（com共同+mute→和大家一起变动→坐公共车）
释义2：
commute
/ kE5mju:t /
◙ verb1. [no obj.] travel some distance between one's home and place of work on a regular basis• 通勤；经常在家和工作地点之间往返 »he commuted from Corby to Kentish Town. 他经常往返于科比和肯蒂什镇之间。2. [with obj.] reduce (a judicial sentence, especially a sentence of death) to another less severe one• 减（刑，尤指死刑） »the head of state commuted the sentence to fifteen years' imprisonment. 国家元首将判决减轻为15年有期徒刑。 (commute something for/into)change one kind of payment or obligation for (another)• 兑换；改变；折偿，代偿 »tithes were commuted into an annual sum varying with the price of corn. 农产品什一税由一笔随谷物价格变化的年度总金额数代偿。 replace (an annuity or other series of payments) with a single payment• 折合偿付，折算 »if he had commuted some of his pension he would have received £330,000. 如果折合偿付他的部分养老金的话，他将得到330,000英镑。3. [no obj.] [Mathematics] (of two operations or quantities) have a commutative relation• [数] （两个运算，两个量）可交换 »operators which do not commute with each other. 不能相互交换的算符。◙ noun1. a regular journey of some distance to and from one's place of work• 通勤；上下班交通路程【派生】
♦ commuter noun （限义项1）
【语源】
1. late Middle English (in the sense 'interchange (two things)'): from Latin commutare, from com- 'altogether' + mutare 'to change'. Sense 1 originally meant to buy and use a commutation ticket, the US term for a season ticket (because the daily fare is commuted to a single payment)
俄语/英语字母转换