This was a seven-week cruise, and this is us, having made our own maps of about 75,000 square kilometers of the seafloor in seven weeks, but that's only a tiny fraction of the seafloor.
7주간의 항해였는데요, 그 기간 동안 작성한 해저지도 면적은 75,000 평방 km에 달하지만 전체 해저의 극히 일부에 불과합니다.