While many of the raised structures are connected by zip lines only, the community is continuing to develop a sky bridge that currently connects a smaller cluster of tree houses.

现在已经建好的大多数树屋都是用铁链连接在一起的，社区正在建设空中桥梁目前连接着一小群树屋。

youdao

Now although sunlight indeed travels along straight lines, the projections of these lines onto the spherical sky are great circles.

虽然阳光呈直线照射，但光线在球型天空的投影却是巨大的圆形。

youdao

Any happy outcome along these lines might prove hard to see, what with the distracting flocks of pigs arcing through the sky on their way to the new ski resorts in hell.

然而因为一群心不在焉的，在通往地狱新滑雪圣地的路上胡乱飞来飞去的猪，上述这些观点也许很难产生令人满意的结果。

youdao

The team is planning all sorts of other capabilities for the tech, including navigation systems -- "Power lines are like highways in the sky, " says one of the researchers -- and auxiliary surveillance systems that power up when jacked in.

ENGADGET: Air Force developing UAVs that can recharge on power lines

An eye in the sky could be used to interdict drugs, size up needs in disaster relief, ensure port security, check power lines and fuel pipelines, fight forest fires and count wildlife, Brown said.

FORBES: This Solar-Powered Drone Will Watch You All Day