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һҪȥˣһµһҪʼˡС˵һֿʼˣ˵һֹȥˡС˵һ겻һˣй衰С꣬һ겻һꡱ 

Сһ굽ͷall the year round졢ϣǡһ겻һꡱEvery year gets worse.ǡ꾰áThis year's business is not good.һ쵽ꡱTime slips away fast, and the year is approaching its end.͡ץuneasyˡйγʱһд 

Ѳ󶨲 

С˵ 

һ365죬8760Сʱ525600ӣ31536000롣365Ǹݵ̫һȦʱģһȦ365죬Ҫ5Сʱ4846룬ļȻһ죬ǰ桱ÿ3꣬228ϼһ죬ͱ366졣 

365Сƽꡱƽordinary year 

366СꡱǶ˼leap yearСϷleap frogܣ˵СҪleapҲleapף4ȥԪУܱĳģǣȻͲǡ1972ܳ1972ꡣ197319741975ܳǣ1976ܳ1976ǡ 

̫ͷȫȫ׼ȷۺϳ꣬ڼؿϾ໹ٲҪ400򣩣 

Ԫ170018001900ܱ4Ϊ365죨ܱ400 

Ԫ2000ȴΪ366죨ܱ400Ԫ200020һ꣬һ36ְ꣬65ꡣ 

µĴСӢĶиӢDays of the Month 

DAYS OF THE MONTH 

Thirty days hath September 

April, June, and November

All the rest have thirty-one 

February twenty-eight alone 

Except in leap year, at which time 

February's day are twenty-nine. 

 

1´2ƽ3´4С5´6С7´8´9С10´11С12´ 

A leap-year proposal飩˵ƽʱŮ飬ʱȴ෴ŮҪ飬ְֿһӢģBut I don't remember any one having given me an engaged ring beforeand it's not leap year neither.ǱԹֲ꣬Ϊʲôղָ˼ 

дĶǡйʱ㷨áǸûϵģֻǰֳʮΣǸӯģ仯29쵽30֮䣨2⣬3031֮䣩鷳ˣʮͷҪ߸£һ£գģ 

ڣ꣩ 

ԪڣǵƽڣԪʮ壨һ½£ Ԫ 

ڣ½ڣ³  

ڣǰ½ڣʮ ± 

⻹Ԫʮ壬ڣ³ţǸߣȵӰ˵ġ 

綼ͨȽϺáˡ 

ְڶʮǰͲ꣬үүѹǮǹһ˻أöҲԣүүѡùǡ˾˵ȳԴ⣬ְԼԳԵ̨ԱʾƷסĽүүˣְΪʹѸһ£ʱһͬԷԲϲЩϰߡ 

үүʱ򣬰ְ20꣬йɥαķףһɥĸʱ̨һеʦѧǧΪүүɥְ濴ߣΪְֲǡТӡΪصйͳʵصһ֣õһֶˡ顷˵֡ԷǧˣӡԼʡûȻǧ˷ҡңҲֱǰںֺôͳһǲ˽ġүүʮְַ꣬үүдһйѧʷ屾ӡƯЩְֵָġТӡǣȴûΪǵİְЩʲô 

ְ 19741222 

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