Many pedal5 their tricycles, but most of them prefer to push or drag them. Some children can cover the whole length of the pool without coming up for breath even once. Whether they will ever become future Olympic champions, only time will tell. Meanwhile, they should encourage those among us who cannot swim five yard***efore they are gasping7 for air.
不那么具备指导意义,看起来有有用的地方,但是也不太打动人