計算游泳划次要注意的事

A few words about counting strokes. There are two ways of doing it. One: maintain a reasonable time, no matter how few strokes. Or Two: do absolutely anything, glide like mad, catch-up, whatever, and notice the time difference.
在計算划次時, 有兩件事要注意:
第一: 不論划次減到多少, 每游一趟的時間, 要維持在合理的秒數(不要為了減少划次而故意拖長漂浮的時間, 因而產生龜速的情況)
第二: 完全專注於滑行、等待的手和節奏的變化。