延误是由于交通量巨大。

The delays are due to the ___sheer volume of traffic.

我们对恐龙骨架的庞大尺寸感到惊叹。

We marveled at the ___sheer size of the dinosaur skeletons.

申请者数量之多让委员会应接不暇。

The ___sheer number of applicants overwhelmed the committee.