4. Some experts initially predicted that the global _____of COVID-19 should peak in April and last until between May and June.
(A) outbreak
(B) breakdown
(C) outcast
(D) breakage

Some experts initially predicted that the global _____ of COVID-19 should peak in April and last until between May and June. 

起初有些專家預計新冠肺炎在全球爆發的的最高點會在四月，介於五到七月結束。

(A)(疾病)暴發、發作 (B)故障/分類 (C)流浪者 (D)破損物

(A) outbreak
(B) breakdown
(C) outcast
(D) breakage

(A)(疾病)暴發、發作 (B)故障/分類 (C)流浪者 (D)破損物 

peak
n.尖端, 山頂, 頂峰 
v.達到頂峰, 使處於頂點 
vi.消瘦
adj.處於頂峰狀態的

at the peak of 在⋯⋯高峰期
例句：She is at the peak of her career .她正處于她事業的頂峰。
            
            At the peak of his fame the successful novelist is rich, courted, photographed, interviewed .
            一個成功的小說家聲名鼎盛時，有錢，有人到處獻殷勤，為他照相，訪問他。

            It increases significantly and can reach hundreds at the peak of a solar cycle
            在太陽周期高峰時，太陽黑子的數量會明顯增加，多達數百。