Hxen.com's tips：Every day persisted can learn English well!-->■Learn English Everyday■
clay - n. a heavy, sticky material from the earth that is made into different shapes and that becomes hard when it is baked or dried
impression - n. something (such as a design or a footprint) made by pressing or stamping a surface
seal - n. an official mark that is stamped on paper or on a small piece of wax to show that something (such as a document) is genuine and has been officially approved
stripe - n. a long, narrow line of color
worship - v. to show respect and love for God or for a god especially by praying, having religious services, etc.
