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".
Jackery Explorer 2000 v2
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第十四条 纳税人按照简易计税方法计算缴纳增值税的，因销售折让、中止或者退回而退还给购买方的销售额，应当从当期销售额中扣减。扣减当期销售额后仍有多缴税款的，可以从以后的应纳税额中扣减或者按规定申请退还。
外祖父母和子女的全家福，摄于1970年。（受访者供图）