16-2 going swimming

laps 圈n.=length not much of a算不上好的… pointers指導n. stroke泳姿 front crawl, back stroke, breast stroke(?)and butterfly爬泳仰泳蝶泳自由泳 狗刨doggy paddle hit去 complex小區 lanes道n. sounds like a plan好主意 bathing suits泳衣

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