I still need to improve.

我仍然需要改进。

I ought to train more to improve my skill.

我应该多训练来提高技巧。

What's the best way to improve speaking?

提高口语的最好方法是什么？

She helped me to improve my English so much.

她帮我提高了很多英语水平。

You should all be helping each other to improve.

你们都应该互相帮助以提高。

It's a good way to improve my English listening.

这是提高我英语听力的好方法。

Ned needs to make an effort to improve his handwriting.

内德需要努力提高他的书写。

The government is making a great effort to improve.

政府正在努力改进。

Dylan trained hard to improve his basketball skills.

迪伦努力训练以提高自己的篮球技能。

Exploring space encourages scientists to improve technology.

探索太空鼓励科学家改进技术。