The plot thickens further on, making it difficult to predict the ending.
Furthermore, exchange rates as such are very difficult to predict.
The impact of the global economic crisis remains difficult to predict.
The landscape of conflicts has become blurred and difficult to predict.
Those passed from mother to baby are difficult to predict or prevent.
The consequences of introducing these reforms are difficult to predict.
The climate following a pole shift is very difficult to predict.
El clima después de un cambio de polos es muy difícil de predecir.
There are hidden variables so it's difficult to predict the outcome.
Hay variables ocultas... así que es difícil predecir el resultado.
However, the extent of the increase would be difficult to predict.
Sin embargo, sería difícil predecir la magnitud de ese aumento.
The future context, too, can be difficult to predict.
El contexto futuro, también, puede ser difícil de predecir.
During these times, the market is very difficult to predict.
Durante estos tiempos, el mercado es muy difícil de predecir.
The restaurant's fickle clientele made it difficult to predict how much food to prepare.
La clientela voluble del restaurante hacía difícil predecir cuánta comida preparar.