It has long been the goal toward making unremitting exploration and hard work, and has made many significant progresses.

长期以来，人们一直向着这一目标进行着不懈的探索和努力，并已取得了许多重大进展。

youdao

It has long been the goal toward making unremitting exploration and hard work, and has made many significant progresses.

长期以来，人们一直向着这一目标进行着不懈的探索和努力，并已取得了许多重大进展。

youdao