![Thereisacommon,usuallyroundobjectthatyoucanseeeverydaya...]( "Thereisacommon,usuallyroundobjectthatyoucanseeeverydaya...")
- 问题详情：Thereisacommon,usuallyroundobjectthatyoucanseeeverydayanditappearsinmanyexpressions—buttons!Buttons,whicharemadeofmetalorplastic,arefoundonallsortsofclothing.Theyfastenorconnectonepieceofclothingtoanothertomakesureyourclothesdon’tfalloff.To...
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