whAt DoEs thE spEAk mEAn A、worlD wAr onE DiD not BrEAk out ovEr night though it sEEmED so.B、worlD wAr onECAmE into BEing in A short pErioD oF timE.C、worlD wAr onE hAD BEEn Fought For yEArs.D、worlD wAr onE DiD not lAst For A long timE.