古人有云，“一言既出,驷马难追”，一句话说出了口，就是套上四匹骏马拉的车也难追。可见对说出口的话，是多么重视。 可是，人总有说错话的时候，比如： 微信消息为啥2分钟后无法撤回？官方详解 这时微...
The ancients have a cloud, "a word is out, the horse is difficult to catch up with," a word out of the mouth, that is, four horse-drawn car is difficult to catch. We can see how much attention is paid to exports. However, when people say something wrong, for example, why can not WeChat news be withdrawn in 2 minutes? Official details.
