Daniel?Merlin?Lund,?from?the?United?States,?has?been?engaged?in?photography?for?36?years?and?published?e-book?in?Amazon.?On?our?way?back?to?Chongli?from?the?prairie?road,?we?met?a?couple?of?old?men?with?weather-beaten?faces.?The?old?woman?was selling?some?wreaths,?and?the?old?man?was?leaning?against?the?lamppost?to?make?them.?When?he?asked,?he?learned?that?the?old?woman?was?eighty?years?old,?and?that?the?old?man?was?eighty-one.?The?two?old?people?did?not?stay?at?home,?but?also?came?out to?insist?on?labor.?They?wove?garland?materials?of?wild?pepper?flowers?on?the?mountain.?Grandma?said?with?a?smile,?“Dried?flowers?can?be?used?to?stew?mutton.?Delicious.”?Daniel?Merlin?Lund?came?forward?to?talk.?Grandpa?learned?that?he?had lived?in?Africa?for?many?years,?actually?hand?in?the?hands?of?the?knitting?wreath?to?Daniel?Merlin?Lund.?He?said,?“You?Africa?is?too?poor.?This?wreath?is?free?for?you.”?What?simple?people!?What?a?lovely?old?man!?Zhang?Tianhong?was?happy?to?take a?photo?with?them.“The?food?here?in?Zhangjiakou?is?so?delicious.?The?people?here?are?so?nice.?These?are?the?most?unforgettable?time?of?my?life.”