Great speaking ability is not something we're born with.

伟大的演讲能力并不是我们与生俱来的东西。

I'd like to improve my English speaking ability.

我想要增进我的英语口说能力。

English writing and basic English speaking ability.

具备基本的英语写作、会话能力。

Basic English listening, reading and speaking ability.

基本的英语听、读、说能力。

Peter doesn't have faith in his public-speaking ability.

彼得对自己公众演讲的能力不具信心。