- 问题详情:Yesterday,asIapproachedthefrontdoorofourpubliclibrary,awhitehairedgentlemansteppedbacktoholdthedoorforme. Yousee,Ihavetogoeverywherethesedayswithawalker,andfolksareconstantlyholdingoropeningdoorsforme,sothiswasnotunusual.However,Itoldthegent...
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