Certain的意思是什么喔

Certain的意思是什么喔 certain意思 请问a certain和certain a哪个是某一的意思? a certain什么意思 certain什么意思? 请问a certain amount of 这个词组的准确意思 请问 develop certain listening skills 是培养一定的听力能力吗?certain 有一定的意思吗? 英语 请问这里的certain什么意思?A few days ago I met a certain young V a certain country什么意思 so as to give the impression of having a certain quality;apparently这句话怎么理解?这个分号的意思是什么? certain&sure的区别? certain的副词 what is certain is that the mystery hasn't been explained fully.这句话中文意思是什么?what is certain is that certain certain certain 单词 certain,fix,confirm,意思是确定的时候 他们的词性?区别?用法? you only eat things at certain times of the year --for example strawberries in june and turnips in winter ,特别是at certain times of the year 的意思