he had a tip from a friend in the know: the horse was a cert.
她有一条从知晓内情的朋友那里得来的秘密消息:这匹马定能赢。
See main entry:know
英汉双解词典包含131075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。