Zhè / bǎ / nǔ / gōng / xū / yào / zhuān / yè / rén / yuán / zhǐ / dǎo / cái / néng / ān / quán / shǐ / yòng这把弩弓需要专业人员指导才能安全使用。This crossbow can only be used safely under professional guidance.