quē fá / wěn dìng / de / xiàn jīn liú / shì / zhè jiā / chū chuàng / qǐ yè / zuì / nán / mí bǔ / de / zhì mìng shāng缺乏稳定的现金流,是这家初创企业最难弥补的致命伤。The lack of stable cash flow is the most difficult fatal weakness for this startup to overcome.