驾轻就熟（駕輕就熟）　

◎ 驾轻就熟 jiàqīng-jiùshú

[drive a light carriage on a familiar road;be able to handle a job with ease because one had previous experience;do a familiar work with ease;make easy progress through experience] 做事从轻松的着手,由熟悉的开始。比喻技艺娴熟,毫不费力

足下旧地重游,可谓驾轻就熟,一路顺风