sphere
意味: A perfectly round three-dimensional shape in which every point on the surface is equidistant from the centre, or a particular area of activity or influence.
In geometry, a sphere's surface area is 4πr² and its volume is (4/3)πr³. The Earth is approximately spherical, though technically an oblate spheroid. Figuratively, sphere is widely used to denote a domain or field, as in 'sphere of influence,' 'public sphere,' or 'outside one's sphere of expertise.'
例文
- The surface area of the sphere was calculated to be approximately 314 square centimetres. 该球体的表面积计算结果约为314平方厘米。La superficie de la esfera se calculó en aproximadamente 314 centímetros cuadrados.その球の表面積は約314平方センチメートルと計算された。그 구의 표면적은 약 314제곱센티미터로 계산되었다.
- Foreign policy fell outside her immediate sphere of responsibility. 外交政策不在她直接的职责范围之内。La política exterior quedaba fuera de su esfera inmediata de responsabilidad.外交政策は彼女の直接的な責任の範囲外であった。외교 정책은 그녀의 직접적인 책임 범위 밖에 있었다.
- The artist suspended a polished steel sphere from the gallery ceiling. 艺术家将一个抛光的钢球悬挂在画廊天花板上。El artista suspendió una esfera de acero pulido del techo de la galería.アーティストは磨かれた鉄球をギャラリーの天井から吊るした。그 예술가는 광택이 나는 강철 구를 갤러리 천장에 매달았다.
発音
使い方ガイド
場面: academic, scientific, professional
トーン: neutral
起源と歴史
From Greek sphaira (ball, globe). Entered English in the 13th century via Old French espere and Latin sphaera, originally referring to the celestial spheres of ancient astronomy.
文化的背景
Era: Modern
Generation: All ages
Social background: Universal
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