单词	piggybacking
释义	请查阅词条：piggyback
随便看	sleights of hand slender slender-beaked slender-billed slender-bodied slenderer slenderest slender foxtail slenderise slenderize slenderizing slenderizing slenderly slenderly slenderness slenderness slendernesses slept slept sleuth sleuth-hound sleuthing sleuthing sleuthings sleuths 人类能够修复自然生态系统吗人类能影响天气吗人类能潜入多深的海底人类能钻入多深的地下人类能阻止小行星撞击地球吗人类能阻止泥石流吗人类还在演化吗人类都有哪些体形？人老了为什么会变矮? 人老了为什么会驼背和变矮 Abblendvorrichtung Abblendwendel abblitzen abblocken Abblockung Abblockungskondensator abblättern Abblättern Abblätterung Abblätterung