优势分终局前双方打成平手后一方赢得的第一分得优势分常略作美国英语ad英国英语vantage
The advantage point is the first point won by one side when both sides are tied at the end of the game. The advantage point is often referred to as ad in American English or vantage in British English
以上为机器翻译结果，长、整句建议使用 人工翻译 。