A few kilometers away , people are dying . "

因为几公里之外，有人正在死去。”

Trekked more than 2000 kilometers to beijing .

在北京跑了超过2000公里。

He walked twenty kilometers to school in a neighboring town .

他步行20多千米到隔壁的城镇去上学。

Apparently siberia 's 13 million square kilometers still isn 't enough space .

显然西伯利亚1300万平方公里还没有足够的生存空间。

One towering cloud reached into the stratosphere between 10 and 15 kilometers in altitude .

一团堆起的云层达到了同温层海拔10到15千米处。