How do you say

After three months of training, he improved his sprint time.

..in Chinese?

他在三个月的训练后，成功提高了短跑速度。

tā zài sān gè yuè de xùn liàn hòu ， chéng gōng tí gāo le duǎn pǎo sù dù 。

How do you say "My friends and I are planning to travel to Yunnan this weekend, and I’ve heard that the scenery there is amazing." in Chinese?