Element
01
元素, 成分
a substance that is composed of only one type of atom, typically characterized by specific physical and chemical properties
例子
Gold is a precious metal and chemical element with the symbol Au.
黄金是一种贵金属和化学元素，符号为Au。
02
an abstract component or essential part of something
例子
Each theory contains an element of uncertainty.
03
a physical part of a whole, especially one that can be separated, replaced, or attached within a system
例子
Each element of the circuit must be checked individually.
04
the natural conditions or environment most suitable for a plant or animal
例子
The species returned to its natural element in the forest.
05
a straight line that forms part of the surface of a cylinder or cone
例子
The diagram shows the elements of the cylindrical shape.
06
the state or situation in which someone feels most natural, effective, or at ease
例子
He 's in his element when solving tough problems.
07
one of the four basic substances—earth, water, air, fire—believed in ancient and medieval thought to make up the physical world
