keep one's tongue between one's teeth
keep one's voice down中文是什么意思
keep one's weakness unexposed中文是什么意思
keep one's word中文是什么意思
keep oneself to oneself中文是什么意思
keep open doors中文是什么意思
英语词典收录了最新的汉英词典和英汉词典，总共有200多万个词条，词库仍在不断更新中。
