exponent
n
1 person or thing that explains and supports a theory, belief, cause, etc (理论、 信仰、 事业等的)倡导者, 拥护者
an exponent of free trade 自由贸易的拥护者
Huxley was an exponent of Darwin's theory of evolution. 赫胥黎是达尔文进化论的鼓吹者.
2 person able to perform skilfully a particular activity (某种活动的)能手
the most famous exponent of mime 最著名的哑剧表演大师
She's a practised exponent of the sport of water-skiing. 她是滑水运动健将.
3 (mathematics 数) figure or symbol that shows how many times a quantity must be multiplied by itself 指数; 幂
In a3, the figure 3 is the exponent. a3中的3是指数.
In xn, the symbol n is the exponent. xn中的n是指数.
On our way home that night I looked down and saw that the necklace was not around my neck any more. I told Pierre. We rushed back to the palace and looked for it.We asked everyone there if they had found a necklace, but without luck. We couldn't find it;