A daredevil parachutist jumped from the top of Tower Bridge today.一位大胆鲁莽的跳伞者今天从伦敦塔桥的桥顶跳了下去。This is Tower Bridge, the most striking of all London bridges.这是塔桥, 是伦敦最有特色的大桥.It's famous for Big Ben, Buckingham Palace an...
For many years sundials have cast their spell over scientists and mathematicians.多年来，日晷一直吸引着科学家和数学家们。Churchyards often have sundials in them.教堂大院里通常设置日晷.Sundials have been around for centuries because are accurate and ea...