ejaculation的音標為/?"d??kj?le??n/，翻譯為“射精；脫精；發出；表達”等。

速記技巧：可以將ejaculation分為幾個部分來記，e發/e/音，jacu發/d??kju/音，l發/l/音，tion發/??n/音。同時，也可以根據ejaculation的發音特點，聯想到與男性生殖器官相關的含義。

ejaculation這個詞的詞源可以追溯到拉丁語詞“ejaculatio”，意為“噴射”。它的變化形式包括過去式“ejaculated”，過去分詞“ejaculated”和現在分詞“ejaculating”。

相關單詞：ejaculation的同義詞包括spurt，spurting，ejaculate，ejaculation，prolapse等。這些詞都與射精或噴射有關。其中，spurt和spurting表示突然或快速的噴射，ejaculate表示射精或噴射，ejaculation本身指射精或精液的排出，而prolapse則表示器官或組織下垂或松弛。

具體來說，ejaculation這個詞在英語中是一個常見的術語，用于描述男性在性行為中精液的排出過程。這個詞的使用已經有一段歷史了，并且它也經常被用來描述類似的生理過程，如尿液、唾液或其他液體的排出。這個詞的詞源和變化形式也反映了它在英語中的重要性和歷史。

總之，ejaculation這個詞的英文詞源可以追溯到拉丁語詞“ejaculatio”，它的變化形式包括過去式和過去分詞形式。這個詞的相關單詞包括spurt，spurting，ejaculate，ejaculation和prolapse等，這些單詞都與射精或噴射有關。這個詞的使用已經有一段歷史了，并且它也經常被用來描述類似的生理過程。

短語：ejaculate, ejaculation, emit semen, release semen, come, orgasm, spurt out

例句：

1. He couldn"t hold back his ejaculation any longer and came all over her hand.

2. She couldn"t help her orgasm after hearing the news.

3. Ejaculation is a natural process that releases semen from the penis.

4. After a long session of sex, he ejaculated with a strong orgasm.

5. Ejaculation is a bodily function that occurs during sexual stimulation.

6. She ejaculated with a sudden burst of pleasure.

7. Ejaculation is a way of relieving sexual tension and releasing stress.

英文小作文：

Ejaculation is a natural bodily function that occurs during sexual stimulation. It is a way of relieving sexual tension and releasing stress. Ejaculation is a moment of intense pleasure and relaxation for many people, and it can also be a way of expressing love and intimacy between partners. However, ejaculation is not always easy to control, and it can be a source of anxiety and embarrassment for some people. Understanding the process of ejaculation and learning how to manage it can help people feel more in control of their sexuality and reduce any unnecessary anxiety or embarrassment.