hemispherectomy

例句：

1. 1. The patient underwent a hemisphere removal surgery for the tumor.
   患者因肿瘤接受了半脑切除手术。
2. 2. The neurosurgeon performed a hemisphere removal to relieve pressure on the brain.
   神经外科医生进行了半脑切除以缓解对大脑的压力。
3. 3. Hemisphere removal is a complex surgical procedure that requires precise timing and technique.
   半脑切除是一项复杂的手术程序，需要精确的时机和技巧。