单词	biconcave
释义	bi·con·cave (bī′kŏn-kāv, bī-kŏnkāv′) adj. Concave on both sides or surfaces: a biconcave lens. bi′con·cavi·ty (-kăvĭ-tē) n. biconcave biconcave (left) and biconvex (right) lenses
随便看	perspiratory perspire persuadable persuade persuader persuasibility persuasible persuasibleness persuasion persuasive persuasively persuasiveness pert Pert pertain Perth pertinacious pertinaciously pertinacity pertinence pertinency pertinent pertinently pertly pertness

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