overspeculation

例句：

1. 1. The stock marketis notorious for its overspeculation in technology stocks.
   股市因对科技股的过度投机而臭名昭著。
2. 2.This company's overspeculation in the renewable energy sector has led to a loss of market share.
   该公司在可再生能源领域的过度投机导致市场份额丧失。
3. 3. The government has been criticized for its overspeculation in foreign investments, which could lead to economic downturns.
   政府因过度投资外国投资而受到批评，这可能导致经济衰退。