向前

fèn yǒng xiàng qián

奋勇向前

forge ahead

kē xué xiàng qián fā zhǎn

科学向前发展

the forward march of science

xiàng qián kàn

向前看！

Eyes front!

tā de shēn zi xiàng qián yī qīng liǎng shǒu gài zài le liǎn shang

他的身子向前一倾，两手盖在了脸上。

He leaned forward, put his hands over his face.

tā xiàng qián kuài zǒu le sì bù

他向前快走了四步。

He took four quick paces forward.