n.(防止倒转的)棘轮，棘齿
vt.安装棘轮于，松脱，把…造成棘齿形，于…作棘齿，在…上刻锯齿

原形：ratchet第三人称单数：ratchets复数：ratchets过去式：ratcheted过去分词：ratcheted现在分词：ratcheting

He used a ratchet wrench to tighten the bolt securely.
他用了一个棘轮扳手来牢固地拧紧螺栓。
The economy seems to be stuck in a downward ratchet, with each crisis pushing us further into recession.
经济似乎陷入了一个向下的螺旋，每次危机都让我们更深地陷入衰退。
The new policy has introduced a ratchet effect, making it impossible to return to previous levels of spending.
新政策引入了一个不可逆效应，使得回到先前的支出水平变得不可能。
She heard the ratchet of the roller coaster clicking as it climbed higher.
她听见过山车在攀高时发出的棘轮咔哒声。
His speech included a ratchet-up of tensions with the neighboring country.
他的演讲中包含了与邻国紧张关系的升级。
The company implemented a ratchet clause in their contract to protect against profit downturns.
公司在合同中实施了防降条款，以保护自己免受利润下滑的影响。
The mechanism inside the clock makes a soft ratchet sound every second.
时钟内部的机械装置每秒都会发出轻微的咔哒声。
The government's decision to cut funding is another ratchet in the decline of public services.
政府削减资金的决定是公共服务衰落的又一步下滑。
He used the ratchet strap to secure the load on the truck bed.
他使用棘轮带固定卡车床上的货物。
The negotiations have a built-in ratchet, where each agreement sets a new baseline for future talks.
谈判有一个内置的不可逆机制，每一项协议都为未来的谈判设定了新的基准线。