秦王嬴稷((👷)秦昭王)当(🐽)政不久,列国(🍩)展开(kāi )一(🃏)系列(😘)兼并战(🛍)争(🔱)。秦(qín )国看(🍥)准时(shí )机(🎗),先与齐(🐉)连横,攻略魏(wèi )国(guó )大片(piàn )土(tǔ )地(🎾)。由(🌫)此(👋),战国(guó )(🎏)进(jìn )入秦(🏇)齐赵三(😎)国并强阶(🐿)段。此(👑)时(shí ),秦(qín )国国内宣(🕯)太后掌(💆)政(✳),穰侯魏冉等“四贵”专(zhuān )权、,秦昭(zhāo )王(wáng )王(wáng )权旁落。然而外部局势(🐖)对秦国十分(🚢)有利:纵横家苏秦与燕王秘(mì )约(🖲)赴齐(qí )(❔),以灭秦为目标(biāo )“死间”齐(qí )(📙)国。面对(duì )国内(🤠)政治困局和国(🙀)外有利机遇,秦(qín )(🍄)王(⛏)嬴稷毅然(rán )(🧤)起用(yòng )范雎,放逐魏冉等“四贵”、废太后之权而恭养(👣)之。同时,与苏秦合谋,五国联军在燕将乐毅率领(🌹)下攻破齐国(guó )都城临淄。秦(qín )王嬴稷遣将白起,相(xiàng )继在伊阙、郢(😙)都、华阳(🔤)、长平(píng )发动(dòng )四大(dà )战(zhàn )役,歼灭了(le )韩魏齐(qí )楚赵百