on certain

on certain ON BEING CERTAIN怎么样 certain certain certain 英语翻译a dedicated building on certain days. at certain degree on certain extent at和on用的对么?at certain degreeon certain extentat和on用的对么? 怎么翻译draw some cartoons on a certain subject 请帮我解释：Yes ,on certain kinds. The pictures that are on show on some certain great websites.这句话是什么意思 I'm certain I can finish the work on time.(改为同义句) I‘m certain ____ ____ the work on time, i am certain that i will be on the moon one day 【 同义句 i am certain ____ _____ on the moon 改错on one morning he went to a certain library to read some books I am certain that he will deliver on his promise 这个that是什么从句? certain products on the terms and subject to the conditions of this agreement Won't it be better for me to ask you for help on a certain problem? You can declare excess valuation on certain baggage at the airport,additional fees will apply ,preventing them from running certain types of competing ads on other