suboral

例句：

1. 1. The suboral region is where the teeth meet the gums.
   亚口腔区域是牙齿与牙龈接触的地方。
2. 2. The subordinate government has to follow the decisions of the higher authority.
   下级政府必须遵循上级政府的决策。
3. 3.The subordination of one part to another is a fundamental principle in organizational design.
   部分对另一部分的从属是组织设计中的基本原则。