write in

名词 write in:

1. a candidate for public office whose name does not appear on the ballot and so must be written on the ballot by the voters
   同义词：write-in candidate, write-in
2. a vote cast by writing in the name of a candidate who is not listed on the ballot
   同义词：write-in

动词 write in:

1. cast a vote by inserting a name that does not appear on the ballot
2. write to an organization

1. You may write in biro or pencil.
   你用圆珠笔或铅笔书写均可。
2. Please write on both sides of the paper, and don't write in the margin.
   请在纸的正反两面书写，但不要写在四周的边上。
3. Business letters must always be formal, but we should write in a natural way to friends.
   商业信函必须是正式的，但是写信给朋友应写得自然一些。