washed to the sea meaning in English

才会被冲刷入海

How many years must a mountain exist before it is washed to the sea
一座山要存在多久才能被洗入大海
How many years can a mountain exist , before it ' s washed to the seas
一座山要耸立多少年，才会被冲刷入海
How many years can a mountain exist before it ' s washed to the sea
一座山能坚持多少年，才会被冲刷到大海？
How many years can a mountain exist before it ’ s washed to the sea
一座山峰被冲刷进海里前能存在多少载？