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Haha... thanks! Obviously I didn't go to elementary school here. :-) "In geometry, a rhombus or rhomb is a quadrilateral whose four sides all have the same length. The rhombus is often called a diamond,

iron(swim, bike & run)

after the diamonds suit in playing cards, or a lozenge, though the latter sometimes refers specifically to a rhombus with a 45° angle."

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Last Updated: 2011-3-14
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工作学习 / 外语学习 / 发现自己基本英语词汇的全面性还是不行，昨晚被5年级的孩子将了一军，问我rhombus这词是不是start with rh，我承认不认识这词。你们中有多少以前学过这词？（现在查字典的不算） -youngking(o)---v---(o); 2011-3-3 (#6540720@0)

我女儿小学三年级毕业时问了我十个词（多来自哈利波特），我只答对四个~~ -hsl(胡司令); 2011-3-3 {102} (#6542145@0)
不过按照几位本地资深培训人士的说话，成人需要的语言能力，到小学快毕业还是刚上初中（忘记了）就已经够了。

对，也叫平行四边形，这么常用的数学名词，就不在我们以前学的英语单词中。 -youngking(o)---v---(o); 2011-3-12 (#6557209@0)
菱形 translated to English should be "diamond". If you ski/snowboard, you'd know it. -iron(swim, bike & run); 2011-3-14 (#6559602@0)

俺小孩也在学这个，所以俺上个礼拜刚查过字典。RHUMBUS是菱型，四边必须等长。DIAMOND只是日常用，不是数学名词。平行四边型叫做PARALER。。。很长很饶 -mye(obasan); 2011-3-14 (#6559615@0)

Haha... thanks! Obviously I didn't go to elementary school here. :-) "In geometry, a rhombus or rhomb is a quadrilateral whose four sides all have the same length. The rhombus is often called a diamond, -iron(swim, bike & run); 2011-3-14 {137} (#6559646@0)
after the diamonds suit in playing cards, or a lozenge, though the latter sometimes refers specifically to a rhombus with a 45° angle."
http://en.wikipedia.org/wiki/Rhombus