Từ điển

Đăng nhập để lưu từ vào sổ tay và ôn lại sau.

• conductor

  danh từ·B2

  Nói thử

  người chỉ huy dàn nhạc

  a person who stands in front of people while they sing or play musical instruments and directs their performance

  Metal is a good conductor of electricity.

• metal

  US/ˈmɛtəl/

  A2

  Nói thử

  kim loại

  any of various opaque, fusible, ductile, and typically lustrous substances that are good conductors of electricity and heat, form cations by loss of electrons, and yield basic oxides and hydroxides; especially : one that is a chemical element as distinguished from an alloy

• copper

  UK/ˈkɒpə/US/ˈkɑpɚ/

  danh từ·B2

  Nói thử

  đồng

  a metallic chemical element with atomic number 29 that is easily formed into sheets and wires and is one of the best known conductors of heat and electricity —often used before another noun

  The wires are (made of) copper.