write in
phrasal verbwrite in (to somebody/something) (for something/to do something)
- to write to an organization or a company, for example to ask about something or to express an opinion
致函（某机构）（表达意见等） - I'll write in for more information.
我要写信索取更详细的材料。 - She wrote in to the BBC to complain.
她写信给BBC抱怨。
- I'll write in for more information.
write somebody/something in
- (North American English, politics) to add an extra name to your voting paper in an election in order to be able to vote for them
（在选票上）写上非候选人姓名