on a tight rein是什么意思 on a tight rein在线中文翻译

on a tight rein是什么意思，on a tight rein在线翻译，on a tight rein中文意思，on a tight rein的中文翻译，on a tight rein发音，on a tight rein例句，on a tight rein词组短语，on a tight rein怎么翻译，单词on a tight rein的意思