英语词汇“key course”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	key course
释义	> as lemmas key course key course n. Building and Architecture (now rare) a course containing a keystone or consisting of keystones. ΚΠ 1700 Moxon's Mech. Exercises: Bricklayers-wks. 41 The middle of the Key-course will be the middle of the Arch. 1835 Penny Cycl. III. 485/2 A stone high up in the arch (for instance, a part of the key-course). 1977 C. M. Harris Hist. Archit. Sourcebk. 315/2 Key course, a course of keystones in an arch; used in a deep archway where a single keystone will not suffice. extracted from keyn.¹adj. < as lemmas
随便看	reductivenesses reductives reductivism reductivisms reductivist reductivists reductorial reductory reduit reduits redulcerate reduncate redund redundance redundances redundancies redundancy redundancy agreement redundancy check redundancy money redundancy pay red admirable red admirable butterfly red admirable pear red admiral

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> as lemmas