n. 船底
清洗和涂油
清洗和涂油watery grave 
身鱼腹，溺死
身鱼腹，溺死grave concern 严重关切
mass grave 乱冈；集体
墓地
冈；集体墓地rise from the grave 死后复活(源自《圣经》)
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ochrea, ochreous, ochrept, ochriasis, ochroid, ochroleucus, ochrometer, ochronosis, ochthium, ocimene,
相似单词
gravimetric, gravimetric analysis, gravimetrical, gravimetroscope, gravimetry, graving, graving dock, gravipause, graviperception, graviphoton,