He never stopped chipping away at the problem until he finally managed to settle it.
chip away at是
“琢磨,考虑再三”的意思
翻译“他一直在琢磨这个问题,直到把它完全解决为止.（to chip away at)
He never stopped chipping away at the problem until he finally managed to settle it.
chip away at是
“琢磨,考虑再三”的意思