This boat rows six oars.
这条船用六只桨划。
The travelers found that the oasis was only a mirage.
旅行者发现绿洲只是海市蜃楼而已。
He took an oath to give up smoking.
他发誓戒烟。
He had a bowl of oatmeal porridge for breakfast.
他早餐吃了一碗燕麦粥。
That child is obedient to his parents.
那个小孩很听父母的话。
The light microscope magnifies the object 1000 diameters.
这架光学显微镜把物像放大一千倍。
He has a strong objection to getting up early.
他强烈反对早起。
His objective was to finish by October.
他的目标是在10月前完成。
We should make an objective appraisal of his job.
我们应当对他的工作做客观的估价。
He felt obligated to help.
他感到有责任帮忙。
You are under no obligation to answer our questions.
你没有回答我们问题的义务。
Attendance at tonight's meeting is obligatory.
今晚的会必须出席。
I was obliged to abandon that idea.
我不得不放弃那个想法。
The road obliques from the river.
这条路与河岔开了。
He was oblivious of his dream.
他忘记了做过的梦。
His cruelty was obnoxious to all.
他的残酷令所有的人厌恶。
Don't be obscene.
别说下流话。
Some parts of his letter are rather obscure.
他的信有些部分晦涩难解。
The company holds its people to strict observance of that code.
公司要求所属人员严格遵守那项规章制度。
They carefully observed the behavior of deer.
他们仔细观察了鹿的生活习性。
He is obsessed by hobbies.
他沉溺于癖好中。