1.individuals,characters, folks替换(people ,persons) 2: positive, favorable, rosy (美好的)，promising(有希望的)，perfect, pleasurable , excellent, outstanding,
3:dreadful, unfavorable, poor, adverse, ill (有害的)替换bad如果bad做表语，可以有be less impressive
eg.An army of college students indulge vt放任；沉溺；使满足；
vi纵容themselves in playing games, enjoying romance with girls/boys or killing time passively in their dorms. When it approaches to graduation ,as a result, they
find their academic records are less impressive.
4.(an army of, an ocean of, a sea of, a multitude of ,a
host of, many, if not most)替换many.
注：用many, if not most 一定要小心，many后一定
Eg. Many individuals, if not most, harbor the idea
that….同理用most, if not all ,替换most.
5: a slice of, quiet a few , several替换some
6:harbor海港，避难所the idea that, take the attitude
that,hold the view that, it is widely shared that,