一场图书展销会英文表达为：book fair。
来源：book fair 这个词组是由两个单词book和fair组成。book 表示图书， fair 表示展览会。
英文例句及翻译：
The annual book fair is a great opportunity to find new and interesting books. (年度图书展销会是寻找新颖有趣图书的绝佳机会。)
I always make sure to visit the book fair whenever it comes to town. (无论何时来到镇上，我总是确保参观图书展销会。)
The book fair is a great way to support local authors and pubpshers. (图书展销会是支持当地作家和出版商的好方式。)