一知半解

rén bù néng mǎn zú yú yī zhī bàn jiě

人不能满足于一知半解。

People can't be content with a smattering of knowledge.

yī zhī bàn jiě shì wēi xiǎn de shì

一知半解是危险的事。

A little learning is a dangerous thing.

wǒ duì guó jì shì wù zhǐ shì yī zhī bàn jiě

我对国际事务只是一知半解。

I have only a scanty knowledge of world affairs.

tā duì fǎ yǔ réng rán shì yī zhī bàn jiě

他对法语仍然是一知半解。

His knowledge of French remained pretty patchy.