The deadliest battle in American history was the battle of Gettysburg. 美国历史上伤亡最惨重的战役是葛底斯堡战役.

　　During the civil war, there were many battles. 内战期间有许多场战役。

　　However, the battle of Gettysburg was the largest and deadliest. 但葛底斯堡战役是规模最大、伤亡最惨重的一场。

　　The battle only lasted for three days. 这场战役只持续了三天。

　　However, over 46,000 soldiers were killed during the battle. 然而，在战役中超过四万六千名士兵阵亡。

　　The battle started when the army of the Southern States attacked the army of the Northern States in Gettysburg Pennsylvania. 战役开始时，南方军队袭击了位于宾夕法尼亚州葛底斯堡的北方军队。

　　However, the Southern States lost the battle. 然而，南方军队输掉了这场战役。

　　A few months later, the Northern States finally won the war. 几个月后，北方军队终于赢得了战争。