英语词汇“trunk line”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	trunk line
释义	trunk line n. 1. A direct line between two telephone switchboards. 2. The main line of a communications or transportation system.
随便看	spermathecal spermatial spermatic spermatic cord spermatid spermatium spermato- spermatocidal spermatocide spermatocyte spermatogenesis spermatogenetic spermatogenic spermatogonial spermatogonium spermatophoral spermatophore spermatophyte spermatophytic spermatorrhea spermatorrhoea spermatozoal spermatozoan spermatozoic spermatozoid

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