Diver John Deane happened to be exploring another sunken ship nearby, and the fishermen approached him, asking him to free their gear.
潜水员约翰·迪恩碰巧在附近探索另一艘沉船，渔民们靠近他，让他把他们的装备取出来。
2
A diver should be physically fit and free from any medication influence that may affect diving in such challenging waters.
为了应付如此复杂的水下情况，潜水员应该有强壮的身体，而且，没有任何影响潜水的疾病。
3
Breathholding time for the freediver is highly variable as this is very adaptive. Divers who do this often and train themselves can prolong their dive times considerably.