testing campaign造句

例句与造句

1. The first air launched demonstration firing took place in 2006 and was followed by several important flight test campaigns during the year
   第一次试验在2006年进行，随后一年时间里还进行了若干次重要的飞行试验项目。
2. It's difficult to find testing campaign in a sentence. 用testing campaign造句挺难的