Since they release oxygen, trees help purify our air.
因为树会排出氧气，有助于净化空气。
2
It could release or re fuel satellites, move them to new orbits, or re place their hard ware and software.
它可以发射人造卫星或给卫星补充燃料，把卫星移动到新轨道上，或者更换它们的软件和硬件。
3
Fine fine day and night to defend the factory warehouse market for all types of industry marketing re-marketing services, the minimum lease term of one year.