点击下方单词,选择对的这个单词
名词
1. 脚步声A footfall is the sound that is made by someone walking each time they take a step.
1. the sound of a step of someone walking
e.g. he heard footsteps on the porch
Synonym: footstepstep
多通过句子记忆单词,而不是单独死记硬背。