bull-roarer

bull-roarer的音标是["bʊlə] ["rɔːə] 。bull的意思是公牛，roarer的意思是吼声，大声叫，隆隆声。这个单词的速记技巧可以是：记住bull（布路）和roarer（扰耳）就像公牛扰得别人耳朵疼。

Bull-roarer这个词源于拉丁语“bullare”，意为“敲击声”，通常指一种古代的乐器，被称为“bullae”。这种乐器通常由皮革或木头制成，形状类似于一个鼓，用于在战争或庆典中发出巨大的声音。

变化形式：名词形式为“bullae-rator”，动词形式为“bullae-rate”。

相关单词：

1. Bellow - 呼喊，吼叫，发出一阵呼喊声

2. Bellows - 风箱，吹管，用于吹气或鼓风的东西

3. Bellowing - 吼叫，大声喊叫

4. Roar - 咆哮，吼叫，发出巨大的声音

5. Roaring - 咆哮的，狂暴的

6. Bull - 公牛，雄性牛

7. Bullock - 小公牛

8. Bovine - 牛的，与牛有关的

9. Bullfight - 斗牛，人与牛的战斗

10. Bullock-driver - 赶牛的人，驾驭牛的人

常用短语：

1. bull in a china shop 莽撞人撞翻瓷器

2. bull and bear market 牛市和熊市

3. bull market 牛市

4. bullish 乐观的

5. bull run 抢购热潮

6. bullish on 对...乐观

7. bullish outlook 乐观的前景

例句：

1. He is always bull-in-a-china-shop when he is angry.

2. The stock market is currently in a bull market.

3. She is bullish on her chances of winning the competition.

4. The news of the company"s profits sent the share price soaring, creating a bull run on the market.

5. The company"s latest product launch has been met with a mixed response, but investors remain bullish on the outlook.

英文小作文：

Bull Market - The Good and the Bad

In the stock market, a bull market is a period when stocks rise in value, often due to positive economic news and optimistic investors. This can be a good time to invest, as prices are generally higher and there is a sense of optimism in the air. However, it can also be a time of recklessness and greed, as investors may be lured by the high prices and make irrational decisions. Therefore, it is important to remain calm, rational and disciplined during a bull market, to avoid being caught up in the frenzy and potentially suffering losses.