当聚合物往某一方向收缩时，则会往另一方向膨胀，这种运动很有用处。

As the polymer contracts in one direction, it expands in another, and these movements can do useful work.

youdao

既然房租以及自有住房主估算房租等价物之和占到了核心指数的40%还多，那么这就给核心通货膨胀率的走势施加了巨大影响。

Since rent and the estimated equivalent of rent for owners comprise more than 40% of the core index, this has a huge impact on the direction of core inflation.

youdao

最大的问题是一些价格和工资是与去年的通货膨胀挂钩的，是过去通胀的残留物。

The biggest problem is that some prices and wages are indexed to last year's inflation, a hangover from the past.

youdao