O、U 开头的英文单词有哪些?越多越好!急需!满意答案追加10分!

O、U 开头的英文单词有哪些?越多越好!急需!满意答案追加10分!
至少各10个！！！！！！！请把单词中文写上！谢谢！大家注意：中文一定要翻译阿！！！！！！！！！！！！

obey 服从,遵守
object 物体,对象
oblong 矩形的
obtain 得到
obivous 明显的
occupation 占领
ocean 海洋
old 老的
of ---的
oil 油
on 在---上面
one 1
once 一次
on-line 联机的
open 打开
optional 选择的
orange 橘子
order 订单,命令
original 原始的
other 其他
out 外面
our 我们的
ultimate 最后的,最终的 The war ended for us in victory
unanimous 全体一致的,一致同意的 They are in asking for a rise in pay
uncover 揭开,揭露 a dish of food
underestimate 低估 the difficulties of the task
undergo 经历,遭受,忍受 much suffering
underline 在……下划线,强调 Please translate the d sentences in the passage
underlie 位于……之下 Many facts my decision
undermine 在……下挖; 暗中破坏 a wall
undertake 着手做,从事 an attack
undesirable 不合意的,不受欢迎的 The drug has side effects
uneasy 心神不宁的,不安宁的 be uneasy about the future
unfold 展开,打开 a newspaper
uniform 不变的,相同的,均匀,统一的 a temperature
unify 使成一体,统一 become a unified nation
update 更新,使现代化 a textbook
upgrade 提高,使升级,改善 products and services
uphold 举起,高举 He upheld his clenched hand
upright 挺直的,垂直的 an seat
uproar 骚乱,骚动The public over unclear-radiation hazards continues to mount
upset 弄翻,打翻 I’ve a tin of paint on the carpet
up-to-date 时新的,新式的,现代化的They are on recent developments in the world computer industry
urge 推进,鼓励 The president ,d on by his staff,has decided to attend the talks
urgent 紧迫的,紧要的 He left the country on business
utilize 利用 solar energy
utter 发出（声音等）,说,吐露 the truth