1.Researchers have come up with a useful tactic to deter seagulls from stealing your picnic sandwiches or making a grab for your French fries.
deter from 阻止
Supporters of the death penalty argue that it would deter criminals from carrying guns
死刑的支持者认为它能阻吓罪犯携带枪支 。
2.Three-quarters of the birds just stood still and looked at the food or flew away.
stand still 站着不动
They told me to stand still and not to turn round.
他们叫我站着不动,不要转身 。