单词	hydronaut
释义	hydronaut noun hy·​dro·​naut ˈhīdrəˌnȯt, -nät plural -s : a member of the crew of a deep-sea vehicle (such as a bathyscaphe) other than a submarine Word History Etymology hydr- + -naut (as in astronaut)
随便看	scarlet elder scarlet fever shellproof shellproofer shellproofest shellprooffer shellprooffest shells shells out shellshake shellwork shellworks shelly shelly rail shellycoat shellycoats Shelta sheltas shelter shelter deck shelter foot shelter half shelter in place shelter leg shelter tent

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