打字猴:1.704946314e+09
1704946314
1704946315 谈面积:
1704946316
1704946317 谈面积时常可用square这个词:
1704946318
1704946319 Its European territory covered about 2,000,000 square miles.它欧洲的领土约有200万平方英里。
1704946320
1704946321 144 square inches equals to 1 square foot.144平方英寸合1平方英尺。
1704946322
1704946323 They are said to be as little as 300 sq. cm.据说他们可以小到300平方公分。
1704946324
1704946325 如果要更准确,可加上in area:
1704946326
1704946327 These hot spots are often hundreds of square miles in area.这些热点面积常常达到千百平方英里。
1704946328
1704946329 The island is only 0.4 square kilometres in area.这座岛面积仅0.4平方公里。
1704946330
1704946331 square还可用来表示“见方”:
1704946332
1704946333 Each family has only one room eight or ten feet square.每家人只有一间8英尺或10英尺见方的房间。
1704946334
1704946335 This piece of wood is two metres square.这块木头为两米见方(即每边两米)。
1704946336
1704946337 比较大的面积可用hectare或acre表示:
1704946338
1704946339 In 1975 there were 220 million hectares under cultivation.1975年有2.2亿公顷的耕地。
1704946340
1704946341 His land covers twenty acres.他的土地有20英亩。
1704946342
1704946343 如果谈圆形面积,可有两个办法,一是in circumference(周边有多长),一是in diameter(直径有多长):
1704946344
1704946345 The earth is almost 25,000 miles in circumference.绕地球一周几乎有25000英里。
1704946346
1704946347 The four main vessels were 2.3 mm in diameter.四根主要血管直径有2.3毫米。
1704946348
1704946349 也可用radius(半径)表示:
1704946350
1704946351 It had a radius of fifteen kilometres.它的半径为15公里。
1704946352
1704946353 表示长、宽、高可以用by或“×”号:
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1704946355 The island measures about 25 miles by 12 miles.这个岛约为25英里长、12英里宽。
1704946356
1704946357 The box measures approximately 26 inches long × 25 inches wide × 16 inches deep.这个箱子约26英寸长、25英寸宽、16英寸高。
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1704946359 Each section is 2×2×1 metres in size.每一块体积为2×2×1米。
1704946360
1704946361 谈体积(容积):
1704946362
1704946363 体积通常以cubic表示:
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