The company looked at each other with a perplexed interest--and inquiringly at Huck, who was tongue-tied.

大家迷惑不解地面面相觑，又好奇地看着哈克，他此时张口结舌，说不出话来。

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Some young people suddenly become self-conscious and tongue-tied in early adolescence.

一些年青人在青春期早期突然变得害羞结舌。

《柯林斯英汉双解大词典》

In their presence I became self-conscious and tongue-tied.

当着他们的面，我变得难为情，说不出话。

《柯林斯英汉双解大词典》

And Haitians say many of the candidates have been campaigning so long, they're tongue-tied.

NPR: Torn by Violence, Haiti Looks to Election with Hope

For someone who makes a living out of communications, I have consistently been tongue-tied around Nelson Mandela.

CNN: Flirting and freak outs of reporting Mandela

In talking about his art, Mr Stella is neither tongue-tied nor theory-bound.

ECONOMIST: Modern American painters