Commercial,the word, is meaning connected with buying and selling goods and services.
有语法错误, mean是动词,用现在进行时解释不通,你总不能说xx正在是xxx的意思吧。buy的名词就是buy, sell的名词是sales, 所以可以翻译为
Commercial means connecting buys and sales to services.
The meaning of the word "commerical" is connecting buysand sales to services.
楼主的翻译很明显受到了汉语思维的影响:逐字翻译,顺序翻译。其实这样翻译出来的句子是不地道的。
错在meaning 后面不能用过去分词 connected