🔍 牛津詞典 🎯
🔍 朗文詞典
🔍 劍橋詞典
🔍 柯林斯詞典
🔍 麥美倫詞典
🔍 韋氏詞典

檢索以下詞典:
(Mr. Ng 不推薦使用 Google 翻譯!)
最近搜尋:

surd

noun
/sɜːd/
/sɜːrd/
(also irrational number)
(mathematics数学)
jump to other results
  1. a number, for example π or the square root of 2, that cannot be expressed as the ratio of two whole numbers无理数
    Word Originmid 16th cent.: from Latin surdus ‘deaf, mute’; as a mathematical term, translating Greek (Euclid) alogos ‘irrational, speechless’, apparently via Arabic jid̲r aṣamm, literally ‘deaf root’.

👨🏻‍🏫 Mr. Ng 牛津詞典 📚 – oxford.mister5️⃣.net
切換為繁體中文
Site Uptime