call in call for 的用法区别

call in - 把.叫来 (有命令的成分）
call for - 叫.来 （有需要的口气)
比如;
call in -
Jennie,can you call the secretary in please?
Jennie,你能不能把秘书叫来?
call for -
Call for a taxi if you need it.
需要的话你可以叫个的士来.