speculator

n.

投机倒把者，投机商人；思辨者，思索者；〈美〉垄断收买（戏票）的人；

复数：speculators

1. The stake was large, and Harkness was a daring speculator.
   赌注不小，而哈克尼斯又是一个大胆的投机家。
2. He is a speculator who hold up customers.
   他是个向顾客索取高价的投机商人。

The Education of a Speculator
The Education of a Speculator
Every Man a Speculator: A History of Wall Street in American Life
Volatile Financial Markets and the Speculator
Volatile Financial Markets and the Speculator
The cross-section of speculator skill: Evidence from day trading ☆
The United States as an informed foreign-exchange speculator
Impact of speculator's expectations of returns and time scales of investment on crude oil price behaviors
The Relationship between Metamorphic Charnockite and Marble near Speculator, Central Adirondack Mountains, New York
Reproductive biology and early life history of the marine teleost Platycephalus speculator Klunzinger (Platycephalidae) in a tempera...