[I, Ipr] ~ (on sb/sth) have a harsh or an unpleasant effect 有不舒服或不愉快的感觉: His tuneless whistling jarred on my nerves. 我听到他吹着不和谐的口哨声感到心烦意乱. 
[I, Ipr] ~ (with sth) be out of harmony; clash 不和谐; 不一致; 冲突; 抵触: (fig 比喻) Her comments on future policy introduced a jarring note to the proceedings. 她对未来政策的评论是与会议议程唱反调. * His harsh criticism jarred with the friendly tone of the meeting. 他批评得十分尖刻, 与会议中的友好气氛很不协调. 
[Tn] give a sudden or painful shock to (sb/sth); jolt 使（某人）受震动而痛疼; 使（某物）震动, 动摇: He jarred his back badly when he fell. 他这一跌, 背部?得很重. 
(phr v) jar against/on sth strike sth with a harsh unpleasant sound 撞击某物发出刺耳的声音: The ship jarred against the quayside. 船撞在码头上发出刺耳的声音.> jar n [sing]
1 unpleasant sound or vibration 令人不快的声音或颤动: The side of the boat hit the quay with a grinding jar. 船舷撞到码头发出刺耳的声音.
2 sudden unpleasant shock; jolt 令人难受的猛然震动; 颠簸: He gave his back a nasty jar when he fell. 他这一跌, 背部?得很厉害.