![Recently，asolarpowered（太阳能动力的）planetooktotheskyforthefi...]( "Recently，asolarpowered（太阳能动力的）planetooktotheskyforthefi...")
- 问题详情：Recently，asolarpowered（太阳能动力的）planetooktotheskyforthefirsttime.Ithadpassedanimportanttestonthewaytotravelaroundtheworld.TheplanetookofffromanairportinSwitzerland（瑞士）at45kmanhour.Itslowlyroseabovethefieldsandintothesky.“Therehasneverbeenan...
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