易混淆的单词： SAILS

Are solar sails the future of space travel ?

太阳帆：太空旅行的未来？

Smaller sails are lighter , easier to hoist and trim , and smaller to stow .

小的帆面更轻，更容易升起和拉平，收储起来也更小。

There in the vacuum it will unfurl four triangular sails as shiny as moonlight and only barely more substantial .

它将会在真空中展开4个闪闪发光的三角帆，除此而外就再没有什么东西了。

Much like the wind pushing a sailboat through water , solar sails rely on sunlight to propel vehicles through space .

这种技术和风推动帆船在水中航行非常相似，太阳帆依赖太阳光线来推动飞船航行于宇宙空间。

Of course , none of these sails are effective once they are out of the sun 's range .

不言而喻的是，一旦飞出太阳光笼罩的范围，这些空间帆无一例外均失去作用。