In other words, the moon only has to cross a tiny piece of the sky for its shadow to move all the way across the earth—from west to east—the real direction the moon is always moving.

也就是说，月亮仅需在太空中移动一小段距离，就能使它的影子从西边移到东边——月亮长久以来真正的移动方向。

Some of the microplastics pass seamlessly through the digestive system and are expelled in faeces, some microplastics are accumulated within bodily organs, and recent research has shown that some pieces cross cell membranes and enter the bloodstream.

一些微塑料无缝地通过消化系统并随粪便排出，一些微塑料在身体器官内积累，最近的研究表明， 一些碎片穿过细胞膜进入血液。