gratuitous

gratuitous的音标为[grəˈwɪtɪəs]，基本翻译是“无偿的；无缘无故的”，速记技巧是“gratuit（免费）+ ous（…的）”。

Gratuitous这个词的词源可以追溯到拉丁语，意为“免费的，无偿的”。它的变化形式主要有复数形式Gratuitouses，过去式和过去分词形式Gratuitous以及现在分词Gratuitous。

相关单词：

1. Advertisement：广告 - 源自Gratuitous，意为无偿的宣传，因此广告一词也含有免费宣传的含义。

2. Gift：礼物 - Gift这个词在词源上与Gratuitous有相似之处，都含有免费或无偿的含义。

3. Donation：捐赠 - Donation这个词表示无偿的捐赠，与Gratuitous有共同的含义。

4. Free：免费 - Free这个词直接源自Gratuitous，表示无偿或免费的。

5. Bounty：赏赐 - Bounty一词也含有免费或无偿的含义，通常用于描述政府或组织对做出贡献的人给予的奖励。

Gratuitous这个词在英语中常用于描述某事是免费的或无偿的，这也反映了英语中许多词汇的词源和含义的多样性。同时，这些相关单词也反映了英语词汇的丰富性和灵活性。

常用短语：

1. gratuitous smile

2. gratuitous gift

3. gratuitous noise

4. gratuitous insult

5. gratuitous praise

6. gratuitous offer

7. gratuitous threat

例句：

1. She gave a gratuitous smile to the newcomer.

2. He accepted a gratuitous gift from his boss without hesitation.

3. The children made a gratuitous noise when they saw their favorite cartoon.

4. The teacher"s gratuitous insult left the student feeling humiliated.

5. The boss"s gratuitous praise made the employee feel overconfident.

6. She made a gratuitous offer to help the old man with his luggage.

7. The gratuitous threat left the victim feeling scared and helpless.

英文小作文：

标题：Gratuitous Actions and Their Impact

In life, we often encounter situations where people offer us something without any apparent reason or expectation of receiving anything in return. These actions can be as simple as a kind word or a smile, or as significant as a gift or a helping hand. However, these gratuitous actions can have a profound impact on us, both positively and negatively.

On the positive side, these actions can bring joy and comfort to us, making us feel loved and cared for. They can also serve as a reminder that there are still good people in this world, who go out of their way to help others without expecting anything in return. On the negative side, these actions can also be interpreted as manipulation or exploitation, where someone uses their kindness or generosity to gain an advantage over others.

In conclusion, we should be grateful for all the gratuitous actions we receive from others, whether they are small or significant. At the same time, we should also be aware of the potential negative consequences of these actions, and use our own actions to give back to others in kind, creating a more positive and supportive environment for everyone.