请翻译以下句子。 The sniff-cup is tall and slender for collecting the fragrance of the tea, allowing the tea-drinkers to smell its fragrance, and enjoy the changes of the tea aromas. 2. The tea tray is an important part in the tea ceremony, it’s not only convenient for the tea making and drinking, but also a unique work of art with the value of collection and appreciation. 3. The Fair Mug is mainly used to balance the concentration of tea to make sure that every guest could have exactly the same tea.