If I had only known, this would never have happened.如果我早知道, 这件事情就永远不会发生了。
If it were only that simple!要是那么简单就好了！
英汉双解词典包含368430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。