n.悉尼（澳大利亚最大的城市，新南威尔士州首府）；悉尼(加拿大东南部港市)；西德尼（姓氏）
The boat put in at Sydney at noon today. 船今天中午在悉尼靠岸。
It is a long flight from Sydney to Beijing. 从悉尼到北京飞行时间很长。
