How do you say
He at last won a competition after three months of training.
..in Chinese?
他在三个月的训练后，终于在比赛中取得了胜利。
tā zài sān gè yuè de xùn liàn hòu ， zhōng yú zài bǐ sài zhōng qǔ de le shèng lì 。
How do you say "He had been training hard for the upcoming marathon for the past three months." in Chinese?