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