收缩

shrink; scrunch; contract; constrict; shrinkage; contraction; shrunken

不足

insufficient; low; short; inadequate; lacking; deficient; skimpy; fail; lack; be light on; fall short of; insufficiency; shortage; deficiency; inadequacy; shortfall; scarcity; under; poorly; ill; insufficiently; inadequately; out; under-; hypo-; not enough; not go far