Manufacturing growth is estimated to have reached 18% year on year last year, and services growth (including logistics sectors such as transport and communications) is estimated to have been 19.1%.请问句中的year on year last year是什么意思？能否从语法上帮我分析一下？谢谢。
请问一楼的这是固定搭配还是习惯用法？从语法结构上怎么解释？
