Will we be using all solar in two years?

　　兩年內我們就會(huì )都用上太陽(yáng)能？

　　Land prices have quadrupled in two years.

　　土地價(jià)格兩年內已經(jīng)增加了三倍。

　　I will signalize you in the filmdom in two years.

　　我將在兩年內使你在電影界出人頭地。