battery pack ______
举一反三
- Battery and mobile pack charger are allowed in the .
- Battery and mobile pack charger are allowed in the checked luggage
- Are the battery and the mobile pack charger allowed in the checked luggage?
- A battery pack contains many batteries, wired in series to create hundreds volts.（ ）
- It uses a large battery pack to store the electricity that powers the electric motor to move the car．