他每次遇到困难就半途而废。

Tā měicì yùdào kùnnan jiù bàntú'érfèi.

Every time he runs into difficulties, he gives up halfway.

我做事从来不半途而废。

Wǒ zuòshì cónglái bù bàntú'érfèi.

I never give up halfway when I do things.

不要半途而废，坚持到底会有收获的。

Bù yào bàntú ér fèi, jiānchí dào dǐ huì yǒu shōuhuò de.

Don't give up halfway; persisting to the end will bring rewards.