manifold plug

例句：

1. 1. The manifold of options available to us is vast and varied.
   我们可用的选择种类繁多。
2. 2. The scientist's research on the manifold of chemical reactions was groundbreaking.
   科学家对化学反应多样性的研究是开创性的。
3. 3. The team's ability to adapt to different manifolds of challenges is impressive.
   团队适应不同挑战的能力令人印象深刻。