The President was 'assisted' with his speech. = The President was 'assisted' in writing his speech.
a doctor who has been involved in several 'assisted suicides'
Another doctor 'assisted' him with the operation.
(..) And before you answer, consider the consequences. If we mess up the supply rendezvous, we die. If we mess up the earth gravity assist, we die. If we do everything perfectly... We add days to our mission. more days before (..)2015 The Martian
(..) to preserve velocity and gain even more. We don't intercept with earth at all... But we come close enough to get a gravity assist and adjust course. While we're doing that... We resupply with the probe... The ...pick up whatever (..)2015 The Martian