P-20：put one's foot down 气愤地表示反对
A:What did your friend say?
A:你朋友说什么？
B:Martha asked me to go ahead, but at first I hesitated.
B：玛莎要我继续进行下去，但一开始我很犹豫。
A:And your friend...
A:但是你的朋友……
B:She put her foot down, and insisted on my making up my mind and going steady with him.
B：她表示强烈反对，并坚持要我下定决心与他稳步发展。
