心虚（xīnxū）with a guilty conscience; lacking in self-confidence

释义
“心虚”有两种含义。一是指做了错事或者坏事怕别人知道；二是指缺乏自信，怕做不好。
Meaning
"心虚(xīnxū)" has two meanings. The first one is to indicate that someone is afraid of being found out about the wrong thing or bad deed he/she did; the second one means being lacking in self-confidence.

例句
Sentences
1、Yídìng shì Tāngmǔ dǎsuì le bōli, wǒ gāngcái wèn tāmen de shíhou,tā hěn xīnxū, dīzhe tóu bùgǎn kàn wǒ.
一定是汤姆打碎了玻璃，我刚才问他们的时候，他很心虚，低着头不敢看我。
It must be Tom who broke the window. He kept his head down and dared not look at me in the eye when I asked them just now.

2、Xīnxū shénme! Nǐ shì jìsuànjī zhuānyè de, kěndìng néng zuòhǎo zhèxiàng gōngzuò.
心虚什么!你是计算机专业的，肯定能做好这项工作。
Be confident! You major in computer technology and you will definitely do it well.

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