Jimandhisbrotherlivedonthe80thfloor.Whencominghomeoneda...
问题详情：Jimandhisbrotherlivedonthe80thfloor.Whencominghomeoneday,totheir 11,theliftswerenotworkingandtheyhadto 12 thestairs. Afterreachingthe20thfloor,breathlessand 13,theydecidedtoleavethe...