oarn.桨;橹;划手v.划行
oar turbine aerator螺旋桨型涡凹曝气头
oarenting cognition养育认知
oarallel information信息对称
oar-adjusting device调桨装置
oar propelled lifeboat划桨救生艇
oar slowly across the river慢慢地划过河去
Oardiopulmonary resuscitation心肺复苏
oarse grain processing equipment杂粮加工设备
Oared stronglyacross the finish line.使劲划过终点。
OARS Office Automation Reporting Service办公自动化的报告业务