我必须努力提高自己的英语水平和能力的翻译：I must work hard to improve my English level and capacity 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

I must strive to improve their English level and ability

I must work hard to improve my English level and capacity

I must raise own English proficiency and ability diligently

I must strive to improve their English language proficiency and competency

I must work hard to improve my English level and capacity