It will take him years of the most painstaking instrument building, campaigns at sea, and every conceivable cross-check to establish the doubt.
It will take him years of the most painstaking instrument building, campaigns at sea, and every conceivable cross-check to establish the doubt.
他将要花费多年时间，从事最艰苦的设备制造、海中活动、反复核对的工作，以确立这个(对光合作用理论的)“置疑”。