concave

adjective

/kɒnˈkeɪv/

/kɑːnˈkeɪv/

词汇	concave
释义	concave adjective /kɒnˈkeɪv/ /kɑːnˈkeɪv/ enlarge image (of an outline or a surface轮廓或表面) curving in凹的；凹面的 a concave lens/mirror凹透镜；凹镜 The upper surface is slightly concave.上表面略凹。 The inside of a shiny spoon is a common example of a concave mirror.光亮的调羹内层就是一种常见的凹镜。 opposite convexTopics Colours and Shapesc2 Collocations DictionaryConcave is used with these nouns: mirror 词源late Middle English: from Latin concavus, from con- ‘together’ + cavus ‘hollow’.
随便看	gladliest gladly gladness gladness' gladnesses gladnesses' gladnesses gladness's glad-rag glad rags glad-rags glad ragses glads glad to see the back of glady Gladys glad–hand glam Glamis Castle glammed glamming glamor Glamorgan glamorise glamorised