Dialects should indeed be banned in university campuses, because dialects are only the language of communication in one region, and other regions can't understand them, and all the students in schools are from all regions, so Putonghua should be unified.

It is wrong to write English composition in dialect, because English needs correct pronunciation and pronunciation. Voice is a form of verb, which is used to explain the relationship between subject and predicate verb. The voice * * * can be divided into active voice and passive voice.

Extended data:

Temporal components in grammar

1, simple present tense: indicates the present state, frequent or habitual actions, the subject's personality and ability, etc.

2. Past continuous tense: indicates the behavior or action that is happening or going on at a certain time or moment in the past.

3. The present perfect tense: the influence or result of an action that happened or has been completed in the past on the present, or an action or state that started from the past and continues to the present.