They went through many trials.

他们经历过很多考验。

youdao

I'd gone through many trials and hardships of life, STILL know how to cherish everything now.

经历了人生的许多风雨，更懂得珍惜现在的一切。

youdao

Through many trials, Dr. Atkins found that lowering carbohydrate intake helped patients lose weight and stay healthy.

经过多次试验，他发现减少碳水化合物的摄取有助于肥胖患者减重并保持健康。

youdao

Ms. YOLANDA ADAMS: (Singing) I've come through many hard trials, through temptations on every hand...

NPR: Gospel Singer Yolanda Adams, 'Day by Day'

Many drugs don't make it all the way through clinical trials.

FORBES: Millennium Drug Bodes Well For Industry