![英语背诵课文 Unit51:Swimming]( "英语背诵课文 Unit51:Swimming")
- Lesson51SwimmingSwimmingisacompetitivesportplayedaroundtheworldandonmanydifferentlevels,includingthe'salsoaneasysporttodoonyourown,bothforfunandforexercise．Manydoctorsandathletesagreethatswimmingisoneofthebestworkoutsyoucangiveyourbody,becauseitwo...
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