?二段踏离合器
... 双重离合器 double clutch 二段踏离合器（汽车） double clutching 双层螺旋弹簧 double coil spring ...
Boesch sent a two-out sharp grounder to Nolan Arenado, who briefly looked at second before double-clutching and then throwing across the diamond.
WSJ: Wells, Boesch lift Yankees to 3-2 win over Rockies
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。