hairbrained

hairbrained的音标为[ˈheərbrənd] ，基本意思是“愚蠢的，荒唐的”，也可表示“轻率的，轻浮的”。在速记技巧方面，可以通过联想记忆法来帮助记忆，例如将hairbrained与hair（头发）和brain（大脑）联系起来，以帮助记忆该单词的含义。

"Hairbrained" 这个词源于英语，意思是愚蠢的或轻率的。它的词源可以追溯到古英语中的 "haerbræna"，意为 "headgear"（头盔）。这个词后来被用来形容人的愚蠢或轻率的行为，因为这些行为常常被比作戴上头盔，即不理智或鲁莽的行为。

变化形式：

名词形式为 "hairbrainedness"，意为愚蠢或轻率的行为。

形容词形式为 "hairbrainedly"，意为愚蠢或轻率地。

相关单词：

1. "Brash" - 意为鲁莽的，轻率的，有时也指冒失的。例如：“He"s always been a bit of a brash driver.”（他一直是个冒失的司机。）

2. "Foolhardy" - 意为勇敢但愚蠢的，冒险的。例如：“They were foolishly attempting to cross the river in winter.”（他们勇敢但愚蠢地尝试在冬天过河。）

3. "Reckless" - 意为鲁莽的，不顾后果的。例如：“He drove recklessly down the mountain road.”（他在山路上一路鲁莽驾驶。）

4. "Impetuous" - 意为鲁莽的，冲动的。例如：“He always acts impetuously without thinking things through.”（他总是冲动行事，不考虑后果。）

5. "Blind" - 意为盲目的，无知的，有时也用来形容鲁莽的行为。例如：“He"s been blindly following the crowd all his life.”（他一生都在盲目地追随人群。）

6. "Reckless_adventure" - 意为鲁莽的冒险，通常指年轻人追求刺激的活动。例如：“He took part in reckless adventures in his youth.”（他在年轻时参加过一些鲁莽的冒险活动。）

7. "Headlong" - 意为急速的，不顾一切的。例如：“He took a headlong decision and didn"t think it through.”（他做了一个急速的决定，没有仔细考虑。）

8. "Blithe" - 意为无忧无虑的，轻率的。例如：“She always acts blithely, regardless of what others think.”（她总是无忧无虑地行事，不在乎别人的看法。）

9. "Sagacious" - 意为明智的，有见识的，有时也用来形容深思熟虑的人。例如：“He is a sagacious person who always weighs his words carefully.”（他是一个深思熟虑的人，总是仔细掂量自己的言辞。）

10. "Rash" - 意为鲁莽的，轻率的，有时也指草率的决定。例如：“He made a rash decision and regretted it later.”（他做了一个轻率的决定，后来后悔了。）

常用短语：

1. Hairbrained idea

2. Hairbrained scheme

3. Hair-brained adventure

4. Hair-brained stunt

5. Hair-brained scheme to do sth

6. Hair-brained plan to do sth

7. Hair-brained idea of doing sth

例句：

1. I had a hairbrained idea of running a marathon.

2. He hatched a hairbrained scheme to rob a bank.

3. She pulled off a hairbrained adventure to climb the mountain alone.

4. He tried a hair-brained stunt and fell off the bicycle.

5. We need to come up with a new hairbrained plan to solve this problem.

6. The hair-brained idea of building a skyscraper on the beach is ridiculous.

7. She had a hair-brained idea of writing a novel, but she never followed through with it.

英文小作文：

I love to try new hairdos, whether it"s a wig or a bun, I always have a new idea in my head. However, sometimes my ideas are not always practical or feasible, and I have to learn from my mistakes and adjust my hairstyle accordingly. For example, I once tried to wear a ponytail with a flower on it, but it was too difficult for my hair to hold it up, so I ended up with a messy bun instead. On the other hand, I also love to try out new hairstyles that are trending in the fashion world, such as bantu knots or braids. I find that they are very versatile and can be worn for different occasions, whether it"s a casual day at work or a formal event with friends. In conclusion, I believe that having fun with your hairstyle is essential, but it"s also important to be practical and wear something that suits your face shape and personality.