onus
(o. onus)
責任
obelisk
(n. obelisk)
方尖碑
outstanding
(adj. outstanding)
傑出的
opera glass
( opera glass)
歌劇玻璃
orthograph
(n. orthograph)
正字法
oil stick
(n. oil stick)
油棒
off-camera
(adj. off-camera)
離機
outage
(n. outage)
停電
occupational
(adj. occupational)
職業
oblique sailing
( oblique sailing)
斜帆