信以为真

tā zhè rén hěn róng yì qīng xìn bié rén bié rén shuō shén me tā dōu xìn yǐ wéi zhēn

他这人很容易轻信别人，别人说什么他都信以为真。

He is so credulous that he believes whatever is said.

yīn wèi tā shuō de yǒu lǐ yǒu jù dà jiā dōu xìn yǐ wéi zhēn

因为他说得有理有据，大家都信以为真。

Since his statement seemed well founded, all the others immediately accepted it.

tā duì tā shuō le yī duī jiǎ huà kě tā quán dōu xìn yǐ wéi zhēn

他对她说了一堆假话，可她全都信以为真。

He told her a pack of lies, but she swallowed it whole.

nà ge bèi xìn yǐ wéi zhēn de wáng zǐ yuán lái shì gè qǐ gài

那个被信以为真的王子，原来是个乞丐。

The supposed prince was really a beggar.