Thank you for signing up for a free lesson on eChineseLearning! Our academic coordinator will contact you within one working day to arrange a free lesson. Please enter the recipients. Please enter the email addresses of the recipients. In the meantime, we will send you 11 eBooks in Mandarin by e-mail. It was not possible to send this article by email. wēn dù zuì gāo dá 30 shè shì dù yǐ shàng. Download them from your email. You successfully sent this article by e-mail.