害羞

她很害羞，不太喜欢说话。

tā hěn hài xiū, bù tài xǐ huān shuō huà.

She is very shy and doesn't like to talk much.

他平日里性格有些内向腼腆害羞，一站上讲台发言就会忍不住脸红心跳。

tā píng rì lǐ xìng gé yǒu xiē nèi xiàng miǎn tiǎn hài xiū, yī zhàn shàng jiǎng tái fā yán jiù huì rěn bú zhù liǎn hóng xīn tiào.

He is usually a bit introverted and shy, but when he stands on the podium to speak, he can't help but blush and his heart beats.