| 1. | The principal keeps students and teachers on their toes with unannounced visits to the classroom .
校长经常事先不通知地去听课，使得学生、教师都不敢怠慢。 |
| 2. | Little as the vander luydens encouraged unannounced visits, he could count on being asked to dine .
尽管范德路易登家不大欢迎不速之客，但还是有可能请他吃顿饭。 |
| 3. | Ladies don ' t go calling on gentleman unannounced
女士不会不请自到地来找绅士的。 |
| 4. | He came into my mother ' s birthday party unannounced
他突然来到，我母亲的生日晚会 |
| 5. | Only very close friends drop by unannounced
他们或许会邀请大家到客厅吃点心、喝茶或咖啡。 |
| 6. | Usually unannounced , trying to catch somebody doing something
总是不请自到，试图揪你小辫子 |
| 7. | Usually unannounced , trying to catch somebody doing something
总是不请自到，试图揪你小辫子 |
| 8. | Only very close friends will just " drop by " unannounced
只有很熟的朋友才会未经通知就突然造访。 |
| 9. | His visit to france was unannounced
他访问法国是闷不吭声的。 |
| 10. | He entered the house unannounced
他闷不吭声地进入那栋房子。 |
