7 months agoA kitten was sleeping on the road by the sea, so when I was nadenade, the cat got on my lapImpressedCatVideo
4 months agoTrong không gian Oxyz,cho mặt phẳng (α) đi qua điểm M(1;2;3) và cắt các tia Ox,Oy,Ozsaxi753