- 释义：
- n.等级；阶梯座位等的一排，一行，一层；包扎工
- 例句：
-
We sat in the upper tier at the stadium.
我们坐在体育场的上排.
换一句
-
The father said, " Open it, girl , " but tier hands did not move.
父亲说: “ 女儿, 打开看看. ” 但是,她那双手却一动也不动.
换一句
-
Each tier of cells is earmarked for a particular function.
每层细胞都有明确的特殊功能标记.
换一句