?通晓
...h ;be posted up in ;familiarize with ;ill seen ;knew like a book ;know like a book ;known like a book ;understand 通晓 am at home in ;are at home in ;is at home in ;understand ;was at home in ;were at home in ..
英汉双解词典包含3185865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。