an arm and a leg

an arm and a leg的音标是[əːn ɑːm ænd æː ləʊd]，翻译为“一条胳膊和一条腿”。

速记技巧：arm和leg发音相似，都为长音/ləʊ/，可以用简写“a l”来快速记忆。

例句：This gift is worth an arm and a leg. 这个礼物非常珍贵。

Arm and leg 的词源：

Arm and leg 是英语中的成语，源自于拉丁语短语 “manus et pedis”，意为“一手一脚”。

变化形式：Arm and leg 在口语中常常简化为 "arm and leg"，表示非常昂贵或非常珍贵。

相关单词：

"Hand" 源自于拉丁语 "manus"，意为手。

"Foot" 源自于拉丁语 "pes"，意为脚。

"Finger" 源自于拉丁语 "digitus"，意为手指。

"Leg" 源自于拉丁语 "pes"，意为腿。

"Hindquarters" 意为后腿，源自于拉丁语 "hindr"（意为后面的，尾部的）和 "quarters"（意为部分）。

"Calf" 意为小腿，源自于拉丁语 "calvus"，意为未覆盖的或未覆盖的。

"Armchair" 意为扶手椅，源自于拉丁语 "armus"，意为手臂，以及 "chair"（椅子）。

"Armful" 意为一抱的量，源自于拉丁语 "armus"，意为手臂。

"Armlet" 意为臂环，源自于古英语中的 "armleac"，意为手臂的装饰品。

以上这些单词都与“an arm and a leg”这个成语有直接或间接的关系，因为它们都与“手”和“脚”有关，而这些部位在日常生活中常常被用来衡量物品的价值或珍贵程度。

短语：

1. at arm"s length

2. at the drop of a hat

3. at arm"s length

4. go to town

5. go to pieces

6. at arm"s length

7. at one"s beck and call

例句：

1. She is always at arm"s length, never letting anyone get too close.

2. He went to town on the project, working day and night to complete it.

3. When things started to go to pieces, she knew it was time to seek help.

4. When you go to a new job, you have to learn to go to town on the tasks at hand.

5. I"m always at someone"s beck and call, ready to help when they need me.

6. It"s important to maintain a healthy distance between yourself and others, even at arm"s length.

英文小作文：

When it comes to spending money, sometimes we can go an arm and a leg for the things we love. Whether it"s a new car, a fancy watch, or a trip around the world, we often find ourselves willing to sacrifice a lot of money for the things that make us happy. However, it"s important to remember that money is not everything and that we should prioritize our spending habits in order to maintain a healthy financial situation. It"s also worth noting that spending money shouldn"t mean neglecting other aspects of our lives, such as family, friends, and hobbies. After all, money is just a means to an end, and we should use it in a way that brings us joy and happiness.