footstep
n [C]
1
(a) (usu pl 通常作复数) sound or mark of a step taken when walking 脚步声; 足迹
I heard his footsteps in the hall 我听见大厅里有他的脚步声.
(b) (distance covered by a) step taken when walking 脚步; 一步的距离.
2 (idm 习语) follow in one's/sb's footsteps => follow.
📖 同为「CET-4」词汇
leadingadj. 重要的,主要的;前列的;首位的;
n. 行距;铅框;
v. 领导(lead的ing形式);
Once the oxygen content of the air had risen to 25% it was ready to burn.
一旦氧气在空气中的含量达到25%,它就要燃烧。
Because of his actions, all Hindus were finally free to draw water from the same village well, to go to the same temple to pray and even marry each other.