It is my third day to go to swimming poor today.The coach taught us the action of foot that is about frog-swimming.I practiced some time,and I pass the test.So I swam from the original area to deep area for practicing.Then the coach said we would have a match,and that if someone failed,who would swim again:if the step is not right,we would swim against for two steps...After racing for a moment,it's time to end the class.
OK咯 看看吧 自己改下哈