translation.en: Because one of the things that's frustrated me as a deep-sea explorer is how many animals there probably are in the ocean that we know nothing about because of the way we explore the ocean.
translation.zh: 因此，作为一名深海探索者， 有一个问题一直困扰着我， 那就是，海洋里究竟有多少生物， 是由于我们的探索手段的问题， 而使我们对他们一无所知的？