To find it, firsttap on the blue question-mark icon.
为了找到它，先点击蓝色的问号图标。
2
First, turn on the tap.
首先打开水龙头。
3
Especially when you get home from school or work, or return from any other public places, the first thing you should do is to turn on the tap, pick up the soap and wash your hands completely.