boldest/boʊld/形容词勇敢的,无畏的She was a bold and fearless climber.她是一位勇敢无畏的登山者。冒昧的;鲁莽的;放肆的He was a bold and defiant little boy.他是一个又冒失又不听话的小男孩。醒目的;显著的;色彩艳丽的;轮廓清晰的This sentence is printed in bold.这个句子是用粗体印刷的。想跟读,去练习