Knee roll: As the weight shifts onto the new ski the knees roll into the Angle of the new turn.

膝盖转动：随着重心移到新的雪板上，膝盖转动到下个回转的角度。

youdao

Hogan himself doled out tidbits about his technique until his death in 1997, including how to anchor the right knee and to roll the left elbow.

WSJ: Golf's Biggest Delusions | Golf Journal by John Paul Newport