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汉语拼音：zhōu cháng

围成一个平面几何图形的所有边长的总和，叫做这个图形的周长。

• The board of ministers unanimously approved the project last week.

  上周长执会一致批准了这个项目。

• This beautiful and curiously shaped lake lies at around fifteen thousand feet.

  这个形状奇特的美丽湖泊周长约有15,000英尺。

• It's six feet high and five feet round.

  它高6英尺，周长5英尺。

• the circumference of the earth

  地球的周长

• A band of grey hair encircled his bald dome.

  他的秃头四周长着一圈灰白的头发.

• A band of gray hair encircled his bald dome.

  他的秃头顶四周长着一圈灰白的头发.

• It's a mile round the circumference of the field.

  运动场周长一英里.

• The tree has a circumference of 6 feet.

  这棵树周长6英尺.

• The island is 3.5 km in circumference.

  这个岛周长3.5千米。

• The circuit of the city walls is three miles.

  环绕本市城墙的周长是叁英里.

• The given radius being 4 ft., find the circumference.

  已知半径为四英尺, 求周长.

• This tree has a circumference of 6 feet.

  这棵树周长六英尺.

• What is the perimeter of this polygon?

  这个多边形的周长是多少?

• The column measures two feet around.

  这根柱子周长2英尺.

• This tree is 3 meters in girth.

  这棵树周长有三公尺.