Do you know the key to the problem？（英译中)

The importance of oceanography as a key to the understanding of our planet is seldom as well appreciated.（英译中)

You should have reported them to the police.（英译中)

What can we do to prevent the disease spreading？（英译中)

Have you been to the Imperial Palace？（英译中)

Can you tell me the nearest way to the railway station？（英译中)

Do you know how to log in to the system？（英译中)