题目:If an addresser has made a difficult request, it’s a good idea to send a short reply acknowledging you’ve got the message and specifying when you will respond to the request.
答案:评论后可见此内容
推荐使用我们的公众号搜索题目,题目更全,检索更方便。支持语音、图片、文字等多种搜索方式。