closely follow(up); come (/tread) on the heels of; come(/follow) on the neck of another; come swarming in; follow hard at heel; hot (/close/hard) at (/on/upon) each other’s heels; in the train of sb (/sth); in the wake of
❍ 从此各帝国主义势力接踵而来。(高云览《小城春秋》序2) The imperialists came swarming in.
接踵而至jiē zhǒnɡ ér zhì
踵：脚后跟。形容来的人很多。come one after another, in the train of , tread upon the heels of sb., come in rapid succession, tread close upon