n.（鼠等)侵擾；（疾病）傳染
The inspector reports cockroach infestation in the kitchen. 檢查員報告廚房蟑螂成災(zāi)。
Locating the source of infestation is the first and most important step. 所要采取的首要措施是尋找蟲害傳染源。
