他当众被指出抄袭时，脸一下子红了，羞耻得说不出话来。

Tā dāngzhòng bèi zhǐchū chāoxí shí, liǎn yíxiàzi hóng le, xiūchǐ de shuōbuchū huà lái.

When he was publicly accused of plagiarism, his face suddenly turned red and he was too ashamed to speak.

他觉得自己说谎是一件很羞耻的事。

Tā juéde zìjǐ shuōhuǎng shì yí jiàn hěn xiūchǐ de shì.

He feels that telling lies is something very shameful.

面对自己的错误，他不仅没有感到羞耻，反而还在笑。

Miànduì zìjǐ de cuòwù, tā bùjǐn méiyǒu gǎndào xiūchǐ, fǎn'ér hái zài xiào.

Facing his own mistakes, he not only didn't feel ashamed, but even laughed.