/'əʊvəbɔ:d; `ovɚ,bɔrd/
adv
1 over the side of a ship or boat into the water 越过船舷进入水中
*fall, jump, be washed overboard 经船舷跌入、跳入、被冲入水中.
2 (idm 习语) go overboard (about sb/sth)(infml often derog 口, 常作贬义) be very or too enthusiastic(about sth/sb) （对某事物[某人]）极感兴趣或过分感兴趣
*He goes overboard about every young woman he meets. 他对年轻的女子见一个爱一个. throw sth/sb overboard abandon sth; get rid of or stop supporting sb 抛弃某事物; 除掉或不再支持某人
*After heavily losing the election the party threw their leader overboard. 该党惨败落选後罢免了党魁.

adv
over the side of a ship or boat into the water
　One of the crew fell overboard and drowned.
　Man overboard! (=said when someone falls off a boat)
go overboard
to do or say something that is too extreme for a particular situation
　I hope politicians will not go overboard in trying to control the press.
throw sth overboard
to get rid of an idea, system etc that is considered to be useless or unnecessary