pyramid

ピラミッド

側面が頂点で合わさる古代の巨大建造物。王の墓などに使われた。

やさしい英語で： A large ancient building with sides that rise to a point, often used as a royal grave.

• We visited a pyramid in Egypt.
• The pyramids were built from huge blocks of stone.
• Who was buried inside this pyramid?

よく使う表現： egyptian pyramid, ancient pyramid, visit a pyramid

角錐、ピラミッド

平らな底面を持ち、三角形の側面が一つの頂点に集まる立体。

やさしい英語で： A solid shape with a flat base and triangular sides that meet at one point.

• Draw a pyramid with a square base.
• The glass roof forms a pyramid.
• She built a small pyramid of wooden blocks.

よく使う表現： square pyramid, pyramid shape, pyramid of something

ピラミッド、階層構造

下の層には人や物が多く、上の層ほど少なくなる構造。

やさしい英語で： An arrangement with many people or things at the bottom and fewer at each higher level.

• One director sits at the top of the management pyramid.
• The chart shows the population pyramid for this country.
• Each level of the pyramid represents a different income group.

類義語： hierarchy

よく使う表現： management pyramid, population pyramid, pyramid of power

カードのピラミッド

下の段ほどトランプの枚数が多くなる、三角形の並べ方。

やさしい英語で： A triangular arrangement of playing cards, with more cards in each row towards the bottom.

• Arrange the cards in a pyramid.
• Remove matching pairs from the pyramid.
• Only the bottom row of the pyramid is fully visible.

よく使う表現： card pyramid, build a pyramid