Modern communication is different from the past.

The previous communication method was slow, the content was not comprehensive, easy to lose and uncertain!

Modern communication means are fast, informative, timely and accurate, and can transmit sounds, images and words!

Ancient times: horses were used to deliver letters, and there were post stations on the way.

There are homing pigeons, which are generally used for short distances.

During the war, the beacon tower in the city burned wolf dung.

After the invention of gunpowder, flares, which are common in TV plays, appeared.

Modern: texting,

Send MMS,

Send instant messages,

Call,

Video chat (with sb.) ......

If it is difficult to say it in person, you can say it on the phone anytime and anywhere.

Send a message if you can't say it.

Modern times are much faster than ancient times, which not only saves time, but also allows people to see the news immediately. The difference is very big. It used to take ten days to send it to a place, but now it takes no more than ten days at most.