Their policies have changed little, if at all, since the last election.自从上次选举以后，他们的政策纵使改变也微乎其微。Flashbacks should be used sparingly, if at all.即使实在必须，倒叙法也该用得节制。He was keen to avoid becoming embroiled again, if at all possible.如果可能的话，他极其希望能避免被再次卷入纷争。Meat was available once a week if at all.即便那时有肉吃，也不过是一周吃一次。