启事: notice; announcement 短语和例子张贴启事 put up a notice; 招工启事 a notice inviting workers; 征稿启事 a notice inviting contributions (to a magazine, newspaper, etc.); 在报上登启事 put a notice in the papers
留言: words [message] written at departure; leave one's comments; leave a message◇留言簿 visitors' book