kill or cure
US /kɪl ɔr kjʊr/
UK /kɪl ɔr kjʊr/

1.
一か八か, 劇薬
a drastic remedy that will either solve a problem completely or make it much worse
:
•
His new business venture is a kill or cure situation; it will either make him rich or bankrupt.
彼の新しい事業は一か八かの状況だ。彼を金持ちにするか、破産させるかのどちらかだ。
•
The doctor tried a kill or cure treatment as a last resort for the patient.
医師は患者の最後の手段として、劇薬のような治療法を試みた。