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operation on sp. 在某位置动手术
opposite direction 相反方向
or rather 或者说、更进一步说
order (that) sb. (should) do 命令某人应该做某事(虚拟语气)
ought not to have done 不应该做(却做了)
ought to have done 应该做(却没做)
out of breath 上气不接下气
out of one's reach 够不着
out of order 坏了、无秩序、乱放
out of the reach of sb. 某人够不到
over and over again 一次又一次、再三
over the radio 从收音机里
over the years 这几年里
owe one's success to sb. 把某人的成功归功于别人
owe one's thanks to sb. 感谢某人
owe sb. sth. 欠某人某物
owe sth. to sb. 把……归于……
pass away 病故、病逝
pass down 继承、传下去
pass on a message to sb. 给(收信人)留/传个信
pass on 传递
pass the exam 考试及格
pay (special/little/much) attention to sth./ doing 对……(特别/不/很)注意
pay a visit to sp. 游览、参观某地
pay back the money 还钱
pay money for sth. 付……的钱
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