四周

sì zhōu quán shì shù

四周全是树

be enclosed by trees

sì zhōu qīng shān tū qǐ yòu gāo yòu dǒu

四周青山突起，又高又陡。

All around it rose, high and steep, the green hills.

huán gù sì zhōu

环顾四周

take in one's surroundings

wǒ de sì zhōu zhǐ yǒu pái shān dǎo hǎi de làng tāo

我的四周只有排山倒海的浪涛。

All around me was a mountain of waves.