以“一”字开头的成语查询结果:http://www.abkabk.com/chengyu/index.php/chaxun/position_search?first=%25E4%25B8%2580&second=&third=&fourth=一石二鸟【解释】扔一颗石子打到两只鸟。比喻做一件事情得到两样好处。http://www.abkabk.com/chengyu/chengyu-yishierniao.html