The journalist did not want to reveal the identity of his informant. 那个新闻工作者不想透露消息提供人的身分。
Police hurried to the address supplied by their informant, only to learn that their bird had flown less than an hour before. 警察急忙赶到告密者提供的地址处，只获悉他们要捉的人一小时不到前已逃走了。
Could you be my language informant for Dutch? 你愿意为我作荷兰语的资料提供人吗?