at the foot of, at the feet of
两者意思不同:at the foot of意为“在…的底部,在…的基部”; 而at the feet of的意思是“在某人脚下(或支配下)”“拜倒在…脚下”。例如:
My native village stands at the foot of the mountain.我出生的那个小村庄坐落在山脚下。
They fell down at the feet of their enemy.他们向敌人屈服了。
on foot, on one's feet
两者意思不同:on foot意思是“步行; 进行起来,在筹划中”,而on one's feet意思是“站着,站起来; 痊愈”。