the trait of being uncommunicative; not volunteering anything more than necessary
同义词：reserve, taciturnity
reticence详细解释
ret.i.cence n.（名词）The state or quality of being reticent; reserve.沉默寡言：沉默寡言的状态或品质；缄默The state or quality of being reluctant; unwillingness.勉强，不愿：不愿意的状态或品质；勉强An instance of being reticent.沉默寡言的实例
