Unit 21
orientation1 n.适应;指导 [app
orifice n.口;孔;洞 [F
orison n.祈祷 [ME
ornate a.装饰华丽的 [ME
orotund2 a.宏亮的;夸张的 [L ore rotundo with rounded mouth]
orphan3 n.a.v.孤儿;使成孤儿
oscillate v.游移不定;踌躇 [L oscillare oscillat- swing]
ossify4 v.骨化 [F ossifier
ostensible5 a.表面的;假装的 [F
ostracize6 v.摒弃;排斥 [Gk ostrakizo
otiose7 a.无效的;多余的 [L otiosus
outbid v.出高于...的价钱
outgoing a.外出的;出发的
outlandish a.古怪的 [OE utlendisc
outrage8 n.v.暴力;暴力;伤害 [ME
ovation9 n.热烈欢迎;鼓掌;大受青睐 [L ovatio
overhaul10 v.分解检查;精细检查 [orig Naut, = releaseby slackening slacken 放松]
overlap11 v.重复
overshadow v.遮阴;使失色;胜过 [E ofersceadwian]
overweening a.过分的;自负的
overwhelm v.淹没;受打击
overwrought a.过度紧张 [overwork的过去式过去分词]
ovine a.绵羊的;似绵羊的 [LL ovinus
pacifist n.非战主义者
paean12 n.赞美歌;欢乐歌 [L
pagan n.异教徒 [ME
pageant13 n.盛会;游行;露天历史剧 [ME pagyn, the ~ of historical events 一连串引人注目的历史事件(
pal14 n.伙伴;共犯 [Romany = brother, mate, ult
palatable15 a.怡人的;味美的 [palate上颚;味觉;趣味,癖好ME