Acids are usually sour and can often burn holes in or damage things they touch.
酸通常是酸性的，它们能把它们接触到的东西腐蚀成洞或毁掉。
2
In order to prevent children from getting an electric shock, with the touch of a finger or metal plug power supply must be chosen to poke holes, safety socket with baffle insurance.
为防止儿童触电、用手指触摸或金属物插捅电源孔眼，一定要选用带有保险挡片的安全插座。
3
Note that there's no holes to look or to move through between any two adjacent blocks of the wall. The blocks are considered to be adjacent if they touch each other in any corner.