oral expression ability的用法和樣例：
例句
- The comprehension of English tenses, their expression in particular, is a crucial factor to the elevation of oral expression ability.
摘要英語時態的理解，尤其是表達，是提高口語表達能力的一個關鍵要素。 - This article tells the detailed practice methods of the three expressive forms, which hopes to improve policemen's expressive ability of spoken language.
文章較為詳細地介紹了以上三種主要口語表達方式的練習方法，旨在提高公安民警的口語表達能力。
