n. 歌剧院；

[例句] ...Sydney Opera House.

在船[火车， 飞机， 汽车]上，已装船；

prep. 不同，不同于，不，除了，绝不是；

故障， 违反规程；

abbr. Organization of Petroleum Exporting Countries石油输出国组织；

[例句] Each member of OPEC would seek to maximize its own production.

v. 打倒，推翻( overthrow的过去分词 )，使终止；

[例句] That government was overthrown in a military coup three years ago.

[例句] ...an attempt to overthrow the president.

(pl.Omaha,Omahas)奥马哈人（内布拉斯加东北部的印第安人）；

v. 对…要价过高( overcharge的过去式和过去分词 )；

[例句] If you feel a taxi driver has overcharged you, say so...

[例句] She claims she was overcharged by £1,000.

adj. 花式字体的；v. 装饰，点缀，美化( ornament的过去式和过去分词 )；

[例句] It had a high ceiling, ornamented with plaster fruits and flowers.

不宜公开的，私下的；

落令，凋谢，在淡季；

adj. 观察的，观测的；

[例句] ...observational humour...

[例句] The observational work is carried out on a range of telescopes.

adj. 有组织的，有条理的；

n. （北欧神话）欧丁神；

v. 起源于，来自，产生( originate的现在分词 )，创造，创始，开创；

[例句] The disease originated in Africa...

[例句] All carbohydrates originate from plants...

[体]内抱腿侧面骑；

adj. 重叠的；v. 部分重叠（ overlap的过去式和过去分词 ），（物体）部份重叠，交叠，（时间上）部份重叠；

[例句] When the bag is folded flat, the bag bottom overlaps one side of the bag...

[例句] Overlap the slices carefully so there are no gaps...

v. 堵塞( occlude的过去式和过去分词 )，阻隔，吸收（气体）；

adj. 骨化的；v. 骨化，硬化，使僵化( ossify的现在分词 )；

[例句] It reckons that rationing would ossify the farm industry...

[例句] British society tended to ossify and close ranks as the 1930s drew to their close.

偏远，异常的， 罕见的，不碍事；