Although   calls   to   share   data   often   concentrate   on   the   moral   advantages   of   sharing,   the practice   is   not   purely   altruistic  .

　　盡管分享教據(jù)的號召常常著眼于分享的道德優(yōu)勢，但是這種做法也并不純粹是利他的。

　　Her tooth was extracted under local anaesthetic.

　　她的牙齒是局部麻醉拔出的。

　　They gave him a general anaesthetic.

　　他們對他施行了全身麻醉。

　　An injection of local anaesthetic is usually given first to numb the area.

　　通常先打局麻，以使該部位失去知覺。

　　Doctors have been told not to sedate children with an anaesthetic that may be linked to five deaths.

　　醫(yī)生們已被告知不要給兒童使用麻醉劑，因為它可能與5起死亡病例有關。