词汇	early activity period
释义	early activity period 活跃早期
随便看	underwater magnetic object underwater maintenance underwater manifold center underwater manipulative underwater manipulator underwater manned submersible underwater manoeuvre underwater massage underwater mating underwater mating apparatus underwater measurement underwater mechanic underwater medicine underwater microphone under water microphone under-water microphone underwater mills underwater mine underwater mine extender mechanism underwater-mine extender mechanism underwater mine fairing underwater-mine fairing underwater mine fuze underwater mines war underwater mining