假使<书>provided
苟不努力，必将失败。
If efforts are not made failure will be certain.
随便casual
一笔不苟
have not a word out of place
不苟言笑
be serious in speaking and manner
汉译英翻译词典收录86165条汉英翻译词条，基本涵盖了全部常用中文字词的英语拼写、翻译、音标、读音、用法、例句等，是英语学习的有利工具。