He tried but didn't succeed.

他试了试，但没有成功。

youdao

I tried to download a song but didn't succeed.

我试着下载一首歌但是没有成功。

youdao

The enemy tried cutting off their retreat, but didn't succeed.

敌人试着切断他们的退路，但没有成功。

youdao

Republicans had hoped and expected that a vote this evening to end debate on Bolton's nomination would succeed, but that didn't happen.

NPR: Senate Delays Vote on Bolton U.N. Nomination

"The jury got it exactly right here: Mr. Bonds made an effort to obstruct justice, but I also find he didn't succeed, " she said, since prosecutors eventually convicted the dealers they were investigating.

WSJ: Bonds Gets 30-Days House Arrest, Probation

But his attempt to shift the corporate culture didn't succeed.

FORBES: Let's Give BP Some Credit