To remove oneself; withdraw.
自动退出；下台
(Brit.)have a further resource that one can make use of
(英)后备方案；第二手准备
(Brit.)have a wide range of resources that one can make use of
(英)有两手准备
make one's first formal appearance in a particular role
初次在公众前露面；首次亮相
the midfielder only made his England bow nine months ago.
这个中场队员九个月前首次在英国亮相。
(of an actor or entertainer) acknowledge applause after a performance by bowing
鞠躬答礼，答谢；谢幕
(Nautical)within 45° of the point directly ahead
(航海)在船头前方45°范围内
a statement or gesture intended to frighten someone into changing their course of action
（意在恐吓某人使其改变行动步骤或方针的言语或姿态式的）警告
supporters are firing a warning shot across the President's bows.
支持者们向总统发出警告。
(bow out)withdraw or retire from an activity, role, or commitment
退出（活动，职业）
many artists are forced to &B{bow out of} the profession at a relatively early age.
许多艺术家在相当早的时候就被迫退出演艺圈。
To behave obsequiously.
行为谄媚地