single-tierBNC⁵⁰²⁸⁴ 基本例句 🌏单层；单层次；单一层级 As we reviewed in the previous section, normally in a single-tier schedule, managers ask our practitioners how many features they can deliver in each six- week iteration. 正如我们在前一个部分回顾的，通常在一个单层的时间表中，管理者问我们从业者在每个六周的迭代中可以提交多少成果。 ibm