During a gravity drop, you let gravity pull the arm down, but at the end of the key drop, you need to tense the finger for an instant in order to stop the hand.

手臂自由下落时让重力把手臂往下带，但是当琴键压到底部时，你需要使手指片刻拉紧来停止手的下落。

youdao

During a gravity drop, you let gravity pull the arm down, but at the end of the key drop, you need to tense the finger for an instant in order to stop the hand.

手臂自由下落时让重力把手臂往下带，但是当琴键压到底部时，你需要使手指片刻拉紧来停止手的下落。

youdao