更高的税收可能会阻碍商业投资。

Higher taxes could ___discourage business investment.

严苛的法律似乎并不能阻止盗窃。

Stricter laws may not ___discourage theft.

高昂的保险费用阻碍了一些人购买跑车。

High insurance costs ___discourage some people from buying sports cars.