annulate的音標為[??nju?le?t] ，基本翻譯為“使無效，使失效；環狀連接”，速記技巧為：ann（取消）+ ulate（使…）→取消…。

annulate的英文詞源可以追溯到拉丁語單詞“annulus”，意為“環，圓圈”。annulate作為動詞，表示“使成環狀，使成圓形”。

變化形式：過去式：annulated；現在分詞：annulating；過去分詞：annulated。

相關單詞：

1. annul：意為“取消，廢除”，其詞源也來自拉丁語，直接表示“使無效”。

2. annulment：意為“廢除，取消”，是由annul和名詞后綴-ment組成的。

3. annulus：意為“環，圓圈”，其動詞形式annulate的詞源也來自于這里。

4. annulability：意為“可廢除性”，是由annul和-ability組成的。

5. annular：意為“環形的，圓形的”，是由annul和-ular組成的。

6. annularly：意為“環狀地，圓形地”，是由annular和-ly組成的。

7. annulment of contract：意為“合同廢除”，是由contract和annulment組成的。

8. annulment of marriage：意為“婚姻無效”，是由marriage和annulment組成的。

9. annulment of title：意為“取消頭銜”，是由title和annulment組成的。

10. annulment of will：意為“取消遺囑”，是由will和annulment組成的。

以上這些單詞都與annulate這個動詞有著密切的關系，它們在英語中廣泛使用，并且表達著不同的含義。

annulate的常用短語：

1. annul a marriage 宣布婚姻無效

2. annul an agreement 宣布協議無效

3. annul a contract 宣布合同無效

4. annul a contractual obligation 宣布合同義務無效

5. annul a legal document 宣布法律文件無效

6. annul a legal relationship 宣布法律關系無效

7. annul a treaty 宣布條約無效

雙語例句：

1. The court annulled the marriage because of fraud. (由于欺詐，法院宣布婚姻無效。)

2. The contract was annulled because it was signed under duress. (由于脅迫，合同被宣布無效。)

英文小作文：

Annulment of Marriage

Marriage is a solemn and binding relationship between two people. However, sometimes, due to various reasons, such as fraud or coercion, the marriage may be annulled. Annulment means that the marriage is declared invalid and the couple no longer has any legal rights and obligations related to the marriage.

I believe that annulment of marriage should be done with caution and consideration, and only when all reasonable efforts have been made to resolve the issues between the couple. Annulment should not be used as a means to seek personal gain or to solve personal problems. It should be done in accordance with the law and with the best interests of the couple and their children in mind.

In conclusion, annulment of marriage is a complex and sensitive issue that requires careful consideration and appropriate handling. It should be done with respect and understanding for both parties involved, and should always be done in accordance with the law.