acute hammer

例句：

1. 1. The surgeon used an acupuncture needle to treat the patient's pain.
   外科医生用针灸针治疗病人的疼痛。
2. 2. The scientist is very acute in his research.
   这位科学家在研究中非常敏锐。
3. 3. The new car has an acuate steering wheel.
   这款新车有一个精确的转向盘。