Since the maximum gap between 9 L2 t) X$ D8 h8 d5 l U4 y: hdoses is three months, a rise in supply' M7 I- T F7 l1 [
would have been required to keep first \$ e+ g% _, n8 G5 M: w# `6 kdoses at the same pace in April. 0 ~* x* c* s- j# W4 T) I5 _! G
& Q- `+ r# r$ f: d7 R) t
这句话是什么意思啊?