| 单词 | base |
| 释义 | basee1 /beis; bes/ n 1 lowest part of anything, esp the part on which sth rests or is supported: 底; 根基; 基础：the of a pillar, → the illus at column. 柱基 (参看 column 之插图) 。 ~ board n (US) base baseman skirting-board. (M) 踢脚板; 壁脚板。 2 (geom) line or surf ace on which a figure stands or can stand: (几向) 底边; 底面： BC is the ~ of the triangle ABC. BC 是三角形 ABC 之底边。 ABCD is the ~ of the pyramid. ABCD 是角锥体的底面。 3 (chem) substance capable of combining with an acid to form a salt; substance into which other things are mixed. (化学) 期基; 碱 (可与酸化合成盐); (混合物之) 主要成分。 4 place at which armed forces, expeditions, etc have their stores, hospitals, etc: (军队，探险队等之) 基地; 根据地： a 'naval 海军基地; an 'air ~; 空军基地; a ~ of operations; 作战根据地; a ~ camp, eg for an Everest expedition. 基地营帐 (如埃佛勒斯峯探险队者) 。 5 (maths) the number (usu 10) which is tg starting point for a logarithmic system. (数学) (对数之) 底 (通常为 10)。 6 (~ ball) one of four stations or positions. 垒。 get to first ~ . (US; fig) take a successful first step towards achieving sth. (美; 喻) 迈向成功之路的第一步; 初步成功。 ~ hit n hit on which a player gets to first ~. 一垒安打 (击球者能上第一垒之一击) 。 ~less adj without cause or foundation: 无原因的; 无縁无故的; 无根据的： ~ /ess fears. 无缘无故的恐惧。 |
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