只有当人认识到自己对别人的依赖时,他才是真正自由的。
The diversity of exoplanets is astonishing, ranging from gas giants to rocky worlds, some of which may harbor life.
沙漠不能被声称或拥有——它是一块由风携带的布,从未被石头固定,被赋予了一百个变化的名字。