parallel

1、par- / para- "beside" + allel-.
2、字面意思就是：beside one another.

parallel 平行的，并列的

来自希腊语parallelos,并列，平行，para-,在旁，在周围，-allel,改变，另外的，词源同else,alternate.即在旁边的另外一条，引申词义平行的，并列的。

parallel

parallel: [16] Etymologically, parallel simply means ‘beside each other’. It comes via French parallèle and Latin parallēlus from Greek parállēlos. This was a compound formed from pará ‘beside’ and allélōn ‘each other’, a derivative of állos ‘other’ (to which English else is distantly related).
=> else

parallel (adj.)

1540s, from Middle French parallèle (16c.) and directly from Latin parallelus, from Greek parallelos "parallel," from para allelois "beside one another," from para- "beside" (see para- (1)) + allelois "each other," from allos "other" (see alias (adv.)). As a noun from 1550s. Parallel bars as gymnastics apparatus are recorded from 1868.

parallel (v.)

1590s, from parallel (n.).

1. Parallel lines will never meet no matter how far extended.

无论延伸多长，平行线永不相交。

2. Farthing Lane's just above the High Street and parallel with it.

法辛巷刚好在大街的北面，与大街平行。

3. Do the emotions develop in parallel with the intellect?

情感与智力是并行发展的吗？

4. This is a real world, running parallel to our own.

这是个真实的世界，与我们的世界并存。

5. It's an ecological disaster with no parallel anywhere else in the world.

这是一场在世界其他地方都没有出现过的生态灾难。

【parallel, uniform, identical, comparable, like, alike, similar】
这组词都有“相似的，类似的”的意思，其区别是：
parallel: 主要指在外表或在性质上相似到有可以相提并论的程度。
uniform: 指在性质、数量、形态或程度等方面相似到很难看出差异的地步。
identical: 语气最强，可指同一个人或物，也可指数个人或物之间完全没有差别。
comparable: 指在某一点或几点上有相似之处，可作有限或粗略的对比，尤指在价值或能力等方面可相提并论。
like: 普通用词，含义广泛，指多个或全部特性都相似，但并非同一个，也可指在某个特殊的偶然相似。
alike: 指事物在性质、特征或外貌上固有的而不是偶然的相似。普通用词，只作表语。
similar: 强调不同的人或事物之间完全或部分相似，暗示可暂不考虑或无视其差异之处。