vi. 复发, 再发作, 再爆发

Recrudesce \Re`cru*desce"\, v. i. [See {Recrudescent}.]
To be in a state of recrudescence; esp., to come into renewed
freshness, vigor, or activity; to revive.

The general influence . . . which is liable every now
and then to recrudesce in his absence. --Edmund
Gurney.
[Webster 1913 Suppl.]