layer upon layer

• 层层剥落

  peel off layer after layer

• 层层剥削

  layer upon layer of exploitation

• 层层包围

  surround ring upon ring

• 层层上报

  report upwards level by level

• 层层下达

  transmit to each lower level

• 层层检查

  examine layer by layer

• 层层深入

  penetrate layer by layer

• 不要仅仅满足于层层听取汇报。

  Do not be satisfied merely with the reports filtered through by the various levels.