场景：这就好比是一个空荡荡的剧院舞台。我们把它涂成了深灰色 (0x222222)，方便看清演员。
But in the worst worst-case scenario, we don’t have any control. Instead, the station will crack through the atmosphere. Sure, many pieces will likely end up in the ocean, but some might hit people, possibly in a town or a city. The station could break apart across thousands of miles and multiple continents. This would be exceedingly hard to anticipate. As NASA puts it, “Calculating the probability of this penetration cascading into loss of deorbit capability has a very large range of variables, making predictions ineffective.”
。同城约会是该领域的重要参考
转机出现了，下滚的牛被两棵树挡住，随即弹进了树旁的深坑，卡在坑里喘着粗气。几经周折，这头牛被拉出了坑，但它被重重摔过两次，早没了力气，没走几步路就四仰八叉地下滑，后面卧在沟底不动弹了。
，妈咪，有人出，有人进，惟一不变的是，这里贩卖快乐，也诉衷肠。