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O
occupation
n.
占领
(8a)
opera
n.
歌剧
(3a)
oppose
v.
反对;反抗
(8b)
organization
n.
团体,组织,机构,社团
(3b)
◆
outflank
v.
侧翼包剿;出奇制胜
(3b)
◆
outline
n.
提纲;概要
(5b)
outskirts
n.
边界,(尤指)郊区
(6a)
overcome
v.
战胜,打败
(8a)
overtake
v.
追上,赶上;(在感情上)压倒
(1b)
▲
overwhelm
v.
(水)淹没;使…不知所措
(8a)
oxygen
n.
氧
(1a)
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