Flat tyres are less common than they used to be, back in the days when the Dempster was covered in tyre-shredding shale rather than more benign gravel, but it was a timely reminder that a mishap can still happen at any time. I had a jack and wrench and could change a tyre, in theory.
อ่านต่อเพิ่มเติม โรงเรียนบ้านห้วยปริก
สาระสำคัญ การผสมเทียม
