Online Class Notes (Nemo)

Insulation (n):material that is used to stop heat, sound, or electricity from escaping or entering
隔热（或隔音、绝缘）材料
Glass fibre is often used as roof insulation.
玻璃纤维常用作屋顶的隔热材料。

Styrofoam-聚苯乙烯泡沫塑料

Equator (n): an imaginary line drawn around the middle of the earth an equal distance from the North Pole and the South Pole
赤道
Indonesia is/lies on the equator.
印尼位于赤道之上。

Polar circle