igneous的音標為[??nd???s]，基本意思是“火成的，火成的，巖漿形成的，巖漿巖的”。

速記技巧：可以嘗試使用音標記音，或者結合單詞的發音特點進行記憶。

igneous這個詞的英文詞源可以追溯到拉丁語“igneus”（意為“火”或“燒過的”）和希臘語“γνε?σιον”（意為“出生的”）。它的變化形式包括其過去分詞形式ignouous，現在分詞形式igneous以及其形容詞形式igneous。

相關單詞：

igneous rock（火成巖）：這個詞指的是由火山巖漿或巖漿侵入形成的巖石。它通常具有較高的含硅和鎂等元素，顏色通常為黑色、深灰色或紅色。

igneous eruption（火山噴發）：這個詞指的是火山噴出巖漿或氣體的現象。它通常伴隨著強烈的爆炸和地震，對周圍環境和人類生活造成嚴重破壞。

igneous formation（火成巖層）：這個詞指的是由火成巖組成的巖石層或地層。它通常在地表下形成，是地質學研究的重要對象之一。

igneous activity（火成活動）：這個詞指的是火山噴發、巖漿侵入等火成現象。它與地球的地質構造和演化密切相關，是地質學家研究的重要對象之一。

以上這些單詞都與igneous這個詞有著密切的聯系，它們描述了火成現象及其對環境和人類的影響。這些單詞的出現和發展也反映了人類對自然界的不斷探索和認識。

igneous短語：

1. igneous rock 火成巖

2. igneous process 火成作用

3. igneous formation 火成巖群

4. igneous activity 火成活動

5. igneous eruption 火成噴發

6. igneous intrusion 火成侵入

7. igneous rocks and minerals 火成巖和礦物

雙語例句：

1. The igneous rocks in this area are mainly granite and basalt. 這個地區的火成巖主要是花崗巖和玄武巖。

2. The igneous activity caused by the volcanoes has brought about a series of changes to the environment. 火山爆發引起的火成活動給環境帶來了一系列的變化。

3. The igneous formation is formed by the accumulation of igneous rocks over millions of years. 這個火成巖群是在數百萬年的時間里由火成巖的積累形成的。

4. The igneous process is a natural process that involves the movement of magma and rock formation. 火成作用是一種涉及巖漿運動和巖石形成的自然過程。

5. The igneous eruption caused a lot of damage and loss of life in the surrounding areas. 火成噴發在周圍地區造成了大量的破壞和生命損失。

6. The igneous intrusion has formed a large number of metamorphic rocks and minerals. 火成侵入形成了大量的變質巖和礦物。

7. The igneous rocks and minerals in our country are very rich and diverse. 我國火成巖和礦物資源非常豐富且種類繁多。

英文小作文：

Igneous Rocks: The Basics of a Natural Formation

Igneous rocks are formed through the cooling and solidification of molten or semi-molten rock materials, commonly known as magma, that have been ejected from a volcano or eruption, or generated through other natural processes such as plutonism or hydrothermal activity. These rocks are characterized by their unique textures, colors, and composition, making them an essential part of our planet"s geological heritage.

From the smallest pebble to the largest mountain, igneous rocks have played a crucial role in shaping our planet"s landscape and environment. From volcanoes to mountains, rivers to lakes, igneous rocks have contributed to the formation of our planet"s diverse landscapes and ecosystems. Understanding igneous rocks is essential for understanding our planet"s history and evolution, as well as for protecting and conserving these precious natural resources.