Although calls to share data often concentrate on the moral advantages of sharing, the practice is not purely altruistic .
尽管分享教据的号召常常着眼于分享的道德优势，但是这种做法也并不纯粹是利他的。
Her tooth was extracted under local anaesthetic.
她的牙齿是局部麻醉拔出的。
They gave him a general anaesthetic.
他们对他施行了全身麻醉。
An injection of local anaesthetic is usually given first to numb the area.
通常先打局麻，以使该部位失去知觉。
Doctors have been told not to sedate children with an anaesthetic that may be linked to five deaths.
医生们已被告知不要给儿童使用麻醉剂，因为它可能与5起死亡病例有关。