的意思 be on one's best behaviour

1. When meeting your girlfriend's parents for the first time, make sure to be on your best behaviour.
见到女友的父母时，记得要举止得体。

2. The children were told to be on their best behaviour while visiting the museum.
孩子们被告知在参观博物馆时要表现得很好。

3. It's important to be on your best behaviour during a job interview to make a good impression.
在面试时保持良好的举止很重要，以留下好印象。

4. The students were reminded to be on their best behaviour during the school assembly.
学生们被提醒在学校集会期间要表现得很好。

5. At a formal dinner, it is polite to be on your best behaviour and follow proper etiquette.
在正式的晚宴上，保持良好的举止并遵循正确的礼仪是礼貌的。

6. The guests were expected to be on their best behaviour at the wedding ceremony.
婚礼上，宾客们被期望要表现得很好。