trimestrial
adj. (妊娠期中)三个月的;(一学年三学期制)一学期的
例句
Here is an article written by the French Chamber of Commerce and Industry in their trimestrial newsletter.
这是一篇由法国工商会在其季刊的文章,介绍雄狮旅游给在法国国工商会的会员与其他读者。