问题描述：
英语句子//right?
the program successfully gained two resources.//句子为啥用过去时?
the message failed to be delivered to the client.//客服端发送消息失败//right?
the program successfully gained two resources.//句子为啥用过去时?
the message failed to be delivered to the client.//客服端发送消息失败//right?
问题解答：
我来补答展开全文阅读