抢救无数人生命的输血每年进行不计其数，然而它却曾是个有争议的行为。

MILLIONS of blood transfusions are performed each year, saving countless lives. Yet, this was once a controversial procedure.

youdao

抢救无数人生命的输血每年进行不计其数，然而它却曾是个有争议的行为。

MILLIONS of blood transfusions are performed each year, saving countless lives.Yet, this was once a controversial procedure.

youdao

抢救遇难船员是一种勇敢的行为。

The rescue of a shipwrecked crew is a heroic action.

youdao