相關Swimmingcanbeaspeace的文學知識

問題詳情：Swimmingcanbeaspeacefulasitisfun.Underwater，noonecantellyoutodoyourhomeworkorcleanyourythingsoundssoft，quietandpeaceful. However，totheearsofawhaleordolphin，theunderwaterworldisgettinglesspeaceful...