What are the skills of digging a straight ditch with an excavator?

This is not professional at all. The key is that you should watch the white gray line put by others. Digging by line is generally straight. Of course, you have to look at it when you dig. When digging, don't dig deep at once. At first, dig carefully, pull far and straighten, and then dig according to the trace you pulled. Be careful not to dig and trim. When you want to dig about 2 to 3 meters away, trim the bottom to increase the speed.