单词	up grade
释义	up grade 上坡,往上走
随便看	retractile disc retractile drawbridge retractile fiber retractile force retractile spring retractility retracting retracting anchor retracting cylinder retracting finger auger retracting inflatable seal retracting mechanism retracting motion retractings retracting spring retracting spring tooth pickup cylinder retracting spring-tooth pickup cylinder retracting stroke retracting system retracting transformation retracting type soot-blower retractio retraction retraction bulb retraction capability dlsg dlsh dlsj dlth dlts dlwg dlws dlwz dlxc dlxk チジンチスイチスジチスルチズチセイチセイチセイチセイガクチセキ