三位分隔

百 hundred

千thousand

百萬million

十億billion

萬億trillion

這些單位不加“s”（復(fù)數(shù)形式）

因為在表達一個“大數(shù)”的時候，是形容詞

是在形容有幾個（單位）

Maybe?I?can?quickly?tell?you?about?the?Nanjing?Massacre.

It's?a?tragic?event?in?Chinese?history.

In?1937（nineteen?thirty-seven）,??during?the?the?Second?Sino-Japanese?War,?the?Japanese?army?captured?Nanjing.

They?killed?around?three?hundred?thousand?Chinese?civilians?and?disarmed?soldiers,?reped?numerous?women,?and?even?killedpregnant?women?and?newborns,?in?just?six?weeks.

This?event?is?often?compared?to?the?Holocaust.?However,?unlike?Germany,which?has?taken?responsibility?for?the?Holocaust?and?apologized.

Japan?hasn't?fully?acknowledged?or?apologized?for?the?Nanjing?Massacre.Some?even?deny?it?happened,?causing?tension?between?China?and?Japan.?

It's?crucial?to?learn?from?history?to?avoid?repeating?past?mistakes.

Let?me?know?if?you'd?like?more?Information.I'm?always?here?to?share.