tier

相關對話：

1. An oval or a round structure having tiers of seats rising gradually outward from an open space or arena at the center.
   圓形露天劇場蛋形或圓形建築，在露天的中央場地周圍有逐漸向外斜上升的階梯式座位
2. A stadium with four tiers of seats.
   一個有四層座位的體育館

英文解釋：

名詞 tier:

1. a relative position or degree of value in a graded group
   同義詞：grade, level
2. any one of two or more competitors who tie one another
3. a worker who ties something
   同義詞：tier up
4. something that is used for tying
5. one of two or more layers one atop another

詞型變化：