游吟roaming vibrato

指乘絃上聲，就退下，復綽上，又退下，約二次。取一音在絃，似遊蕩之意。行遊而吟，有游魚順水之勢，有如雙撞而放緩是也。

Gist: The finger rides the sound up the string, then retreats, slides up again and retreats again, about twice, taking one note on the string with a sense of drifting. Roaming while vibrating has the air of a fish swimming with the current, like a slowed-down double knock.

指乘綽上，就退下少許，復綽上，又退下少許，以得二聲爲率，指似遊蕩，如雙撞而放緩。

Gist: The finger rides a chuo up, retreats a little, slides up again and retreats a little again, taking two sounds as the rule; the finger seems to drift, like a slowed-down double knock.