效劳: work in the service of; work for; service; offer one's services 短语和例子乐于效劳 be glad to offer one's services; 为国效劳 serve one's country
甘愿效劳: be glad to offer one's services; be glad to do sth. for sb.; exert oneself voluntarily in the service of another; render readily a service to sb.; willingly serve..
