易混淆的单词： Ducts

Dozens of workers are busy putting in walls and heating ducts .

许多建筑工人们正忙着摆砖上墙，取暖管道。

More than once , you 've caught him crawling in your ventilation ducts

你不止一次发现他在你家的通风管道里爬行

On the construction site , things move faster : dozens of workers are busy putting in walls and heating ducts .

在工地上，一切都变得更快些：数十名工人正忙着砌墙和铺设暖气管道。

The challenge is getting to them - ducts are typically concealed inside walls and ceilings .

由于输气管道通常埋在墙和天花板中，如何够到它们的确是个问题。

As more water flows in , the cells begin to swell , squeezing the sweat ducts closed and preventing sweat from escaping .

随着水的流入，细胞开始膨胀，挤压排汗管道使其堵塞从而阻止了排汗。