He became the greatest inventor of contemporary times because of his focus on his goal and tirelessness.

他之所以能成为当代最伟大的发明家，实得力于他的专心致志，努力不懈。

youdao

He became the greatest inventor of contemporary times because of his focus on his goal and tirelessness.

他之所以能成为当代最伟大的发明家，实得力于他的专心致志，努力不懈。

youdao