半途而废 (bàn tú ér fèi): Give up halfway (verb/idiom) — Meaning & Stroke Order

Despite numerous difficulties, he promised that he would never let this research project be abandoned halfway.

Do you really want to give up halfway again and abandon the opportunity you worked so hard to get?

This project is important, we cannot abandon it halfway.

Fitness requires perseverance; you won't see any results if you give up halfway.