He and Heidi together put the heavy sheet on, tucking the ends in well.

他和海蒂一起把厚厚的被单盖上，把边沿掖好。

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First, as the structure begins to sway, the heavy-tiled roof covering the extended eaves of each storey ACTS like the long pole with weights on the ends that a tightrope walker USES to steady himself.

首先，在每层楼挑出的屋檐上覆盖着沉重的瓦屋面，在结构开始摇晃时，它们就如同绳索步行者用平衡杆(在末端放置重量的长杆)来保持稳定一样。

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Try to keep track of how long you have your period, when it starts and ends, and how heavy the flow is.

记录一下每次经期多久，开始和结束的时间，以及流量多少。

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