中译英,几句话,急

中译英,几句话,急
If your Visa and Study Permit are still valid you should be permitted back into Canada. Please be advised that the expiry date on a Visa cannot be extended.If you wish to depart after the expiry of your visa you must re-apply for a new visa.
A new application must include ALL the required documents, information submitted on a previous application will not be transferred onto a new application.
However, if you underwent a medical examination in connection with your application, you must arrive in Canada within one year of the date of the examination.For this reason, if you submit a new application within nine months after the date of your first medical examination you may be exempted from the medical exam.