erection

erection的音标是[ɪˈreɪkʃn]，基本翻译是“建立；树立；增强；勃起”。

速记技巧：可以尝试使用音标记音，或者结合该单词的字母组成进行记忆。

erection这个词的词源可以追溯到拉丁语词根“rectus”，意为“直的”。它通过借用这个词根，结合英语中的“to make”或“to establish”等词，形成了“erection”这个单词，表示“建立”或“设立”。

erection的变化形式主要有两种：过去式和过去分词。过去式为erected，过去分词为erected。

与erection相关的单词有：

1. erect：表示“竖立”或“直立”，其词源与erection相同。这个词可以作为动词使用，表示使某物竖立或直立。

2. installation：表示“安装”或“设置”，其词源可以追溯到拉丁语词根“instal”或“institu”，意为“放置”或“设置”。而installation这个词则是由“install”（安装）和“ation”（动作）组成的合成词，表示安装或设置的过程。

3. construction：表示“建筑”或“构造”，其词源可以追溯到拉丁语词根“constru”或“struct”，意为“建造”或“构造”。而construction这个词则是由“construct”（建造）和“ion”（动作）组成的合成词，表示建造或构造的过程。

以上这些单词都与erection有着密切的联系，它们都涉及到建立、设立、竖立、安装、构造等动作，因此它们都与erection有着相似的含义和用法。

常用短语：

1. have an erection

2. get an erection

3. erectile dysfunction

4. hard-on

5. boner

6. rise and harden

7. get a hard-on

双语例句：

1. I always have an erection when I think about sex. (我想性的时候总是硬起来。)

2. He couldn"t get an erection and had to seek medical help. (他硬不起来，不得不寻求医疗帮助。)

3. Erectile dysfunction can be a side effect of some medications. (勃起功能障碍可以是某些药物的副作用。)

4. His boner was so hard that it was painful. (他的勃起非常硬，以至于有点疼。)

5. When she saw him, he immediately got a hard-on. (她一看见他，他就立刻硬起来了。)

6. She likes to tease him by making him feel like he"s getting a boner all the time. (她喜欢逗他，让他觉得他总是硬着。)

7. Sexual stimulation is necessary for maintaining an erection. (性刺激对于维持勃起是必要的。)

英文小作文：

When I was young, I always had an erection when I watched pornographic movies or listened to sexy music. However, as I grew older, I realized that it was not only because of hormones and excitement, but also because of sexual stimulation and desire. Sexual stimulation is necessary for maintaining an erection, but it is also important to maintain healthy lifestyle habits, such as eating a balanced diet, exercising regularly, and getting enough sleep. In addition, if you are experiencing erectile dysfunction or other sexual problems, it is recommended to consult a doctor for professional advice and treatment. Sexual health is very important for both individuals and relationships, and it is essential to maintain a healthy balance between sexuality and emotional intimacy.