graafian

graafian的音标是[grəˈfiən]，翻译成中文是格拉斐恩（人名）。

速记技巧是：可以尝试使用谐音法进行记忆，gra-fa-rian可以谐音为“格法日燃”，这样有助于快速记忆该单词。

Graafian，也称为Pearsonian，是一个表示一种类型的不完全平方数的术语，通常指形如2n+1的数。它的词源可以追溯到数学家John Machin在1760年代的工作，他发现了一些与毕达哥拉斯定理相关的性质。

变化形式：单数形式为graafian number，复数形式为graafian terms。

相关单词：

1. Pell"s equation：与graafian相关的概念，指一类非平凡的超越方程，形如x^2 - graafian^2 = 0。

2. Machin"s formula：约翰·梅钦的公式，用于计算graafian数。

3. square-free：非二次的，与graafian相关的概念，指不含有二次因子的数。

4. quadratic reciprocity：二次互反律，是数论中的一个定理，也与graafian相关。

5. diophantine equations：丢番图方程，一种特殊的graafian方程，涉及到整数解。

6. incomplete square：非完全平方数，与graafian密切相关的概念。

7. Pell"s Pell numbers：佩尔数，一种特殊的graafian数。

8. quadratic congruence：二次同余，一种与graafian相关的数学概念。

9. binary quadratic forms：二元二次型，是一种与graafian密切相关的数学结构。

10. quartic equations：四次方程，是一种复杂的graafian方程类型。

常用短语：

1. grapevine 葡萄藤

2. grapevine report 风闻

3. grapevine rumour 谣言

4. grapevine warfare 流言蜚语

5. grapevine whisper 传闻

6. grapevine gossip 闲话

7. grapevine tattler 传闻者

双语例句：

1. The grapevine is a beautiful vine that covers the wall with its leaves. (描述葡萄藤)

2. The grapevine rumour has been denied by the company. (谈论流言)

3. She is a master of spreading grapevine gossip. (评价传闻传播者)

4. The grapevine whisper suggests that he may be offered a promotion soon. (讨论传闻)

5. Please stop spreading false grapevine reports about me. (请求停止传播谣言)

6. The grapevine tattler is always busy with news about the latest celebrity scandals. (谈论传闻者的工作)

7. We need to stop using the grapevine as a source of information and rely on official channels instead. (呼吁使用官方渠道获取信息)

英文小作文：

Title: The Power of the Grapevine

Grapevines have been a part of our lives for centuries, whether it"s the beautiful vine that covers a wall with its leaves, or the rumours and gossip that spread through social circles like wildfire. In today"s fast-paced world, we rely more than ever on technology to keep us informed, but there"s something about the old-fashioned way of passing along information that still has a place in our lives.

Grapevine gossip can be a source of entertainment, but it can also be harmful if it"s untrue or used in a malicious way. We need to be mindful of the impact our words have on others and refrain from spreading rumours and unfounded stories. At the same time, we shouldn"t underestimate the power of the grapevine to bring us closer together and create bonds of community and understanding. Through sharing stories and passing along information, we can build bridges of connection and understanding that technology alone cannot provide.

In conclusion, the grapevine may be an old-fashioned way of passing along information, but it still has a role to play in our lives. We should use it responsibly, taking into account its potential benefits and drawbacks, and embrace it as a way of staying connected with our friends and communities.