Mr Lemmens said that future spacecraft "should be designed in such a way that they can take themselves out of orbit safely, preferably by doing controlled re-entries".
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我们可以去宽容人，却不可视他人宽容为理所当然。宽容他人，是放过别人；收敛自己，是成全自己，多了温和，多了尊重，多了友谊，多了互帮互利。时时自牧，你无需向任何人索取宽容，因为你早已让身边的人甘愿以温柔相待。
automatically, but C offers no functions for using the stack (which is funny。关于这个话题，im钱包官方下载提供了深入分析
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