| 单词 | ocean trench |
| 释义 | > as lemmasocean trench ocean trench n. Geology = trench n. 5. ΘΚΠ the world > the earth > water > sea or ocean > region of sea or ocean > [noun] > sea bed > trench or cavity in alveus1670 basin1881 trench1903 foredeep1909 oceanic trench1945 ocean trench1956 1956 R. Spink tr. A. F. Bruun et al. Galathea Deep Sea Exped. 1950—1952 I. 26 To explore the ocean trenches in order to find out whether life occurred. 1986 Times 17 July 1/7 Most..submarines become unsafe below 12,000 ft. yet the world's deepest ocean trenches..are nearly three times that deep. 1997 G. S. Helfman et al. Diversity of Fishes xiv. 221 Teleosts..occur in every imaginable fresh- and marine water habitat, from ocean trenches to high mountain lakes and streams. < as lemmas |
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