Though she tried her best to explain the theory of the machine, I still failed to understand.

尽管她努力向我解释那台机器的原理，我还是不明白。

youdao

She tried her best to solve the problem.

她尽了最大的努力解决这个问题。

《牛津词典》

He Jiao tried her best to achieve her dream.

何姣尽了最大的努力去实现她的梦想。

youdao

"My niece, Dr. Walden, tried her best to get them to understand they're sitting on a goldmine with Jackie Robinson, " he said.

CNN: Honoring '42' comes slowly in legend's hometown

The groom said his bride-to-be had been reduced to tears on several occasions throughout the day and he had tried to comfort her as best as he could.

BBC: Wedding plans in chaos due to snow

Cybulski's girlfriend, Crystal Loschiavo, told the station that she did her best to keep the family calm, and tried to soothe Johnson's brother.

CNN: Boy pulled from Disney resort pool dies