grenades的音標為：[?ɡre?nd?z]，基本翻譯是“手榴彈；群雷”，速記技巧是：gre=群雷，nade=手榴彈。

Grenade的英文詞源：

- 詞源：古法語grenade，源自中世紀拉丁語的granatum，意為“石榴”。

變化形式：

- 復數形式：grenades。

相關單詞：

- grenadier：炮兵，擲彈兵，使用手榴彈的士兵。他們通常在軍隊中負責投擲手榴彈，以分散敵軍并制造恐慌。

- fragmentation grenade：碎片式手榴彈，一種設計用于爆炸后產生大量碎片的手榴彈。

- anti-tank grenade：反坦克手榴彈，一種專門設計用于摧毀坦克的武器。

這些單詞都與grenade這個詞源有關，它們在軍事和戰爭中扮演著重要的角色，展現了人類在戰爭中的智慧和創造力。

常用短語：

1. throw grenades

2. fire grenades

3. detonate grenades

4. launch grenades

5. lob grenades

6. toss grenades

7. hurl grenades

例句：

1. They threw grenades at the enemy position, causing heavy casualties.

2. The soldiers fired their grenades into the enemy"s trench, making them scatter in panic.

3. After detonating the grenades, the insurgents withdrew into the mountains.

4. He launched a grenade at the approaching police car, causing it to skid to a stop.

5. She lobbed a grenade over the wall, causing panic among the enemy soldiers.

6. Tossing a grenade, he narrowly missed hitting his own comrades.

7. Hurling insults and grenades, the protesters clashed with the police in the street.

英文小作文：

Explosive weapons have always been a powerful tool in warfare, and grenades are no exception. Grenades can be thrown, fired, or detonated to cause significant damage to enemy positions and personnel. However, their use must be carefully considered, as they can also cause harm to friendly forces and innocent bystanders. Therefore, it is essential to use grenades judiciously and only when necessary, to ensure that they are used effectively and safely.