根据短文内容和所给中文提示，在空白处填入单词，每空限填一词。
Melbourne is in Australia. It is a beautiful city with huge gardens, great 1________(公园) and many
amazing buildings. Many people come to 2________(参观) it every year.
Melbourne is also an 3________(古老的) city in Australia. It has an interesting 4________(历史) of
more than 170 years. The first people came in 1835, and in the 1850s, gold was discovered. Because of this,
Melbourne became a very 5________ (富裕的) city. Many new buildings were 6________(建造) at that time.
And 7________ (今天), Melbourne is one of the world's greatest cities. It is known for its beauty and its
famous universities. It is also Australia's top city for sports. Many of them are very 8________(流行的). For
example, young people are mad about 9________(足球) here. In 1956, the Olympic Games came to the city,
and for the first time they were showed live on TV around the world.
Melbourne is a nice 10________(地方) and you can always have great fun here.
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平衡混合气体的总压为（）。