英语词汇a knock at sth怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	a knock at sth
释义	a knock at sth敲…的声音 There was a knock at the door.有敲门声。 See knock
随便看	protomorphic proton protonate protonated protonates protonating protonation protonema protonemal protonemata protonemata protonematal protonic proton microscope proton number Proto-Norse protonotarial protonotariat protonotaries protonotary protonotary proton-pump inhibitor protons protopathic protopathy

英汉双解词典包含368430条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。