slip down

基本解释

My legs are stretched out straight and together behind me. My pants slip down my legs and are gone.
我的双腿给并拢后拉的笔直，我的裤子从腿上滑落后就不知道去哪里了。
Most important, Mr Erickson is using reinforced concrete piers and beams to tether the house to the bedrock; otherwise Taliesin might slip down the hill.
最重要的是，Erickson用钢筋混凝土梁柱来巩固房子的地基，避免塔里耶森滑落山坡。
She seemed frozen in an eternal panic lest the bath towel slip down any farther, and since she had no arms, she was in an unfortunate position to pull the towel up again.
她好象被永远地冻结在对浴巾再往下滑的恐惧中了。

Germany may slip down the global rankings of export champions, it is accepted, as countries like China continue to grow.
ECONOMIST: European politics
Or, would you simply slip down the emergency slide, onto the Tarmac and out of the job forever, as a JetBlue flight attendant recently did?
FORBES: Even a Lousy Bridge is a Bridge to Somewhere