单词 | well-defined |
释义 | well-deˈfined, ppl. a. Clearly indicated, marked, or determined.
1704Newton Optics ii. i. (1721) 171 When the Rings..appeared only black and white, they were very distinct and well defined. 1835J. Duncan Beetles (Nat. Libr.) 154 A numerous and well-defined family, including nearly 200 known species. 1856Kane Arct. Expl. II. xxviii. 279 There was one well-defined lead which..lost itself to seaward. 1865Lubbock Prehist. Times 146 Its well-defined geographical and historical range. 1899Crockett Kit Kennedy xxxix. 278 If Kit had looked closely he would have seen that his frankness had brought a well-defined blush to her cheek. |

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