另外有一個英文單字 appointment（聽發音）是＂任命、約會、任用、預約＂等意思，也可以用來表示約定，通常會在後面加上 with 來表示與誰的約定，例如＂我與哥哥約定＂英文翻譯為＂I made an appointment with my brother.＂這樣。
約定英文造句練習My wife and I have a deal to go to Yilan travel.
Classmates have an appointment after graduation will hold a party each year.
Comply with the agreement is the basic law of interpersonal relationship.
The couple set an appointment to get married next year.
We set an appointment to go to the Japanese tourist, you want to join?
We set an appointment that grow up to startup together.
I made an appointment this afternoon to look at the experimental data with the professor.
Do you remember our appointment of two years ago?