Because at the end it turned out that Mark Antony and Octavian fought a civil war.

因为最终马克·安东尼与屋大维,展开了内战。

耶鲁公开课 - 新约课程节选

Octavian won, and Octavian defeated Mark Antony.

屋大维获胜了，击败了马克·安东尼。

耶鲁公开课 - 新约课程节选

He had adopted another Roman, Octavian, and Julius Caesar's adopted son, Octavian, then formed an alliance with Mark Antony, who had been Julius Caesar's friend, and a lesser known figure named Lepidus, whom you don't really need to remember.

恺撒有个养子，屋大维，他与恺撒的朋友，马克·安东尼结成后三头同盟，还有一方大家比较陌生，是雷必达，这个名字不用记。

耶鲁公开课 - 新约课程节选