比喻做事认定方向，决不反悔。高云览《小城春秋》第三十章：“告诉你，我 吴七 开弓没有回头箭，冤仇要结就结到底！”《花城》1981年增刊：“开弓没有回头箭，不要说 灵岩寺 回不去，就是能够回去，洒家也不去。”
to be determined to reach one's goals in spite of setbacks; lit. once you've shot the arrow, there's no getting it back (idiom); to have to finish what one started; fig. once you started sth, there's no turning back
