Share this:FacebookTwitterEmailPinterestLinkedInExercise 229Exercise 229 – Guanshu Lu Comments (2) guanshu.lu December 9, 2015 at 12:28 pm is that all glass material? cool jiezhou1993 December 9, 2015 at 2:56 pm class house! Pingbacks list Join the discussion, leave a reply! Cancel comment Comment Name Email Website Notify me of follow-up comments by email. Notify me of new posts by email. Δ This site uses Akismet to reduce spam. Learn how your comment data is processed.