词根:orb = circle, track
来自拉丁语的orb 意为circle,track。
同源词:
1. exorbitant(脱离常规、轨道的ex(=out) + orb(=track,circle))
adj.(价格、要求等)过高的,过分的
exorbitance n.(价格、要求等的)过高,过分
exorbitantly adv.过高地,昂贵地
Prices for butter and eggs were exorbitant during WW Ⅱ. 第二次世界大战期间黄油和鸡蛋的价格贵得离谱。
2. sbuorbital
adj.未进入(地球)轨道的,亚轨道的;在眼眶之下的 *sub(=under)
suborbital flight (宇宙飞船等的)亚轨迹飞行
3. orbit
n.(天体、宇宙飞船等的)轨道 v.进入轨道;沿轨道飞行、盘旋
the earth's orbit round the sun 地球围绕太阳的轨道
How many spacecraft have orbited the moon ? 有多少宇宙飞船绕月球运行过?
4. orbital
adj.轨道的
spacecraft's orbital distance the earth. 宇宙飞船距离地球的轨道距离
orbital velocity 轨道速度
词根词缀:orb-, orbito-
【来源及含义】Latin: rut or track made in the ground by a wheel; circle, ring, round surface, disk
【相关描述】Also used in its extended anatomical sense as, "the portion of the skull immediately surrounding the eye".
【同源单词】anteorbital, deorbit, exorbitance, exorbitancy, exorbitant, exorbitantly