前脚

tā qián jiǎo yī huá shēn tǐ zhàn bù wěn jiù shuāi le

他前脚一滑，身体站不稳，就摔了。

As soon as his front foot slipped, he lost his balance and fell over.

bù yào ràng qián jiǎo wài cè de jiǎo huái xià chuí

不要让前脚外侧的脚踝下垂。

Don't let the outer ankle of your front foot fall down.

tā qián jiǎo jìn dà mén tā hòu jiǎo jiù gǎn dào le

他前脚进大门，她后脚就赶到了。

No sooner had he stepped into the door than she arrived.

tā qián jiǎo zǒu wǒ hòu jiǎo jiù lái le

她前脚走，我后脚就来了。

I arrived the moment she had left.