language competence的用法和样例：
例句
- Proficient in computer operation, strong language skills and writing skills, can work under high pressure and image.
熟练的电脑操作，较强的语言表达能力和写作能力，能承受较大的工作压力，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.
文章较为详细地介绍了以上三种主要口语表达方式的练习方法，旨在提高公安民警的口语表达能力。
