Due to the economic downturn, there are fewer opportunities this year for students looking for internships.

opportunities 是名词 opportunity 的复数形式，opportunity 由前缀 op-（表示"朝向"）和 port（"港口"）加上名词后缀 -unity 组成，原意是"朝向港口的机会"，引申为"机遇、机会"的意思。