Answer: Because pole is very round straight, especially cement pole surface is slick, weight big, roll the most easily when assemble and unassemble and be carried, be like carelessly, injure a person possibly.

• 答：由于电杆都很圆直，尤其是水泥电杆表面光滑，重量又大，在装卸和搬运时最易滚动，如不注重，就可能伤人。