language competence的用法和樣例：
例句
- Proficient in computer operation, strong language skills and writing skills, can work under high pressure and image.
熟練的電腦操作，較強的語言表達能力和寫作能力，能承受較大的工作壓力，形象佳。 - 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。
