Reading books can broaden my horizon.请问应该是horizons还是horizon

Reading books can broaden my horizon.请问应该是horizons还是horizon broaden my horizons和widen my horizon哪个更地道? horizon not only broaden your horizon but also can make you confiden another culture.They can also broaden their horizons and broden one's horizon和broaden one's view 那个更好? 英语翻译broaden our horizon ,shoot oneself in the foot ,stop bea 英语翻译是：moon above the horizon还是：moon upon the horizon总之是用一个短语 the horizon reference 英语time horizon是什么意思 beyond the horizon是什么意思 standard-horizon是什么意思