-
To discover and define those laws is the problem of history.
发现和说明那些法则乃是历史的任务。
youdao
-
Why is difficult to define, or rather discover and achieve happiness?
为何很难定义、发现和获得幸福？
youdao
-
Why is difficult to define, or rather discover and achieve happiness?
为何很难定义、发现和获得幸福？
youdao