一个可靠的投资对于长期增长至关重要。

A ___secure investment is essential for long-term growth.

我认为旅游业是一项有益于经济的可靠投资。

I consider tourism a ___secure investment that benefits the economy.

为了确保一个可靠的未来，我们必须做出明智的财务决策。

To ensure a ___secure future, we must make wise financial decisions.