Thank you for joining CCTV’s Around The World show. Today, we're in Australia. It’s a beautiful,1day! There are many people here2vacation. Some are taking photos.3are lying on the beach. Look at this group of people playing beach volleyball. They look cool! I am surprised they can play4 this heat. This is a very interesting place. The people are really very5
、M的两物体，系在一根过定滑轮的轻绳两端，M放在水平地板上，