He faltered and lost his chance.

他犹豫不决，丧失了机会。

youdao

He faltered when it came to speaking English.

他一说起英语就会变得结结巴巴。

youdao

Greatly embarrassed, he faltered out his thanks.

他非常困窘地说出他的谢意。

youdao

He faltered in the fourth, and now New York's season is over.

WSJ: Anthony blocked in 4th as Knicks knocked out

Murray's win would have been even more straightforward had he not faltered when serving for the match at 6-2 5-2.

BBC: SPORT | Tennis | Henman beaten, Murray into semis

With closer Frank Francisco still recovering from elbow surgery, setup man Bobby Parnell gets promoted to a role he has faltered in before.

WSJ: Married to the Mets: Wright waiting for young help