接受良好的教育是对你未来的一项投资。

Getting a good education is an ___investment in your future.

该项目的成功需要投入大量的时间和精力。

The project's success required a significant ___investment of time and energy.

与购买二手车相比，买一辆新的、可靠的汽车感觉像是一项明智的投资。

Buying a new, reliable car felt like a wise ___investment compared to a used one.