海洋探索相关词汇与表达 — 英语填空题
题目
根据首字母提示补全单词，完成与海洋探索相关的句子：The research team used a sonar device to e___ the seabed and search for sunken ships.
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根据中文释义补全单词：s_bm_r_n_（潜水艇）
海洋探索相关词汇与表达