先给你第2版
Movement,explanation,battery
Scratch
Foolish
Politely
Explain,explanation
A,B
略
边做边学：servant,
properly,
movement
,politely
,battery,
Heat energy,
at last
,in a way,
流经,connect,
form,
battery,
explanation
,polite,
flow,
grin,
foolish,
flows,
batteries,
forms
,connected,
movement energy,
properly,
foolish,
servants,
iron,
explanation,
ACDBD,
save energy,
electricity,
flow
,save water
,turn themselves off