或许海之于贝壳，意义在于珍珠；或许时间之于煤炭，意义在于钻石。

Perhaps time’s definition of coal is the diamond.

youdao

或许海之于贝壳，意义在于珍珠；或许时间之于煤炭，意义在于钻石。

Perhaps time’s definition of coal is the diamond.

youdao