书籍 Solutions - 基础 - 7单元-7G

a mechanical tool or an electronic device that is useful for doing something

the duration for which a battery can power a device or system before it needs to be recharged or replaced

a camera connected to a computer that is used for recording or broadcasting videos of the user

a container that holds the major internal components of a computer, such as the motherboard, power supply, and storage devices

a device that has two pieces that cover the ears and is used to listen to music or sounds without others hearing

a socket on a computer or other electronic device used to connect external devices such as a mouse, keyboard, etc.

a small electronic storage device used to store digital data

a physical socket or opening in a computer or electronic device where a circuit board or other component can be inserted

an illusion of movement created by displaying a series of still images of a moving object in quick succession

a machine or device that detects any changes in the environment and sends the information to other electronic devices

a small, removable card that stores data for one's mobile device and identifies one to the network

the technology or system for connecting other devices to a computer

the technology that allows computers, cell phones, etc. to access the Internet or exchange data wirelessly

equipment that transforms electrical signals into sound, loud enough for public announcements, playing music, etc.

a display by which the user can interact with a computer, smartphone, etc. by touching its surface

the official currency of Japan, abbreviated as ¥, used for financial transactions and pricing in Japan

the unit of money in the US, Canada, Australia and several other countries, equal to 100 cents

the currency of the UK and some other countries that is equal to 100 pence

the money that most countries in Europe use

the basic unit of currency in China, abbreviated as ¥ or CNY, used for financial transactions and pricing in China

the biggest country in East Asia

a country that is in East Asia and made up of many islands

a union of 27 European states that is formed to strengthen the economic and political bonds between its members

a country in North America that has 50 states

a country in northwest Europe, consisting of England, Scotland, Wales, and Northern Ireland

a person, organization, company, etc. that pays to get things from businesses or stores

someone whose job is to serve or help customers in a shop

(of a place or piece of equipment) connected to something in a way that is not separable

able to operate without wires