他们大都表现良好，训练刻苦。

They are generally performing well and hard working.

youdao

我的教练曾经夸我说：‘一些孩子有天赋固然不错，而柯里斯蒂娜有毅力，她训练刻苦。’

My coach used to say, ‘There are children with talent, then there is Christine. She just works hard.’

youdao

她刻苦训练，并决心再次行动。

She trained hard and willed herself to move again.

youdao

like he was the hardest... that I was the hardest worker he had seen in sports in like 10 years.

他是训练最刻苦的……我是他这十年来见过的训练最刻苦的球员。

足球部队长的领导力 - SpeakingMax英语口语达人

but I made up for it by working really hard on the gym and working really hard on the field.

但我通过体育馆和足球场上的刻苦训练弥补了天赋不足。

足球部队长的领导力 - SpeakingMax英语口语达人

And you've been working really hard to get on the soccer team, you've been training.

你为了能入选特别刻苦地锻炼，还参加了训练。

I was 课堂 - SpeakingMax英语口语达人