Frank, how long can a drone fly for?

弗兰克，一架无人机可以飞多长时间？

Harry lost track of time. He wondered how long they had been flying, it felt like an hour at least.

哈利已经失去了时间概念。他不知道他们已经飞了多长时间，感觉至少有一个小时了。

Do you wonder how long this helicopter can fly with an additional fuel tank?

您想知道这架直升机在增加油箱的情况下可以飞行多长时间吗？

Or who first had the idea of arranging them into weeks, so that they no longer flew past, nameless and in no order, as they did for people in prehistoric times?

谁第一个将日子归纳为星期，日子就不再像对于原始时期的人类那样一天接着一天地过，没有名字，没有顺序？

Meanwhile, Russia began evacuating its diplomatic posts in Ukraine and by Wednesday afternoon the Russian flag was no longer flying over its embassy in Kyiv, where police have surrounded the building.

与此同时，俄罗斯开始撤出其在乌克兰的外交机构，至周三下午，俄罗斯驻基辅大使馆上空不再飘扬着俄罗斯国旗，警方已经包围了使馆大楼。