tiering

例句：

1. 1. The soil is tiering in the center, with lighter layers on either side.
   土壤在中心分层，两边是较轻的层次。
2. 2. The city's architecture is tiering, with tall buildings and wide streets.
   城市的建筑分层，高楼大厦和宽阔街道并存。
3. 3. The data was tiering, with different levels of detail for each section.
   数据分层，每个部分都有不同级别的细节。