星期天上午,爸爸从超市买回一只吸盘式方便挂钩,让凯凯把它安装在卫生间墙面瓷砖上。开始凯凯安装得不牢固,连一条毛巾的重量都挂不住。于是爸爸告诉他安装的技巧:一是要选择最光滑的平面;二是吸盘里的空气要排净,以便形成真空,利用大气压让吸盘吸附在墙面上。凯凯一试,还真灵验,挂一袋水果也不会 Sunday morning, my father bought a sucker-type convenience hook from the supermarket, allowing Kaikai to install it on the bathroom wall tile. Kai Kai started installation is not solid, even the weight of a towel can not hang. So my dad told him to install the skills: First, to choose the most smooth surface; Second, the suction cup of air to drain, in order to form a vacuum, the use of atmospheric pressure so that the suction cup adsorbed on the wall. Kaikai a try, really good news, hang a bag of fruit will not