常见例句双语例句Then fold at the top into an inverted "V" shape and put a safety pin through the centre which you use to attach the ribbon to your clothing.此刻，一条长长的红丝带被抛在会场的上空……支持者将红丝带剪成小段，并用别针将折叠好的红丝带标志别在胸前。blog.sina.com.cn 返回 centre pin