英语语法分析

Tarmac was originally a registered trademark from 1903 and the black, smelly, gooey consistency of the stuff as it’s steam-rollered in place gives an obvious clue to the tar part of the word.

Tarmac原本是为一种黑色有粘连性并带难闻气味配合蒸汽碾路机使用的产品而准备的商标名称，注册于1903年。 而之后这个商标名称便顺理成章地成为了这种炼焦副产品的代名词。