complex infection的用法和樣例：
例句
- The disease was caused by the mixed infection of Fusarium solani and plant nematodes.
該病的發(fā)生是由于腐皮鐮刀菌與植物線(xiàn)蟲(chóng)復合感染所致。 - Three major symptom types, i.e. symptomless virus infection, irregular yellow spot and severe yellow mosaic were evidenced in the field.
以電顯觀(guān)察茉莉花病葉粗汁液，發(fā)現其內至少含有三種長(cháng)度不一絲狀粒子的病毒病原，乃一復合感染之病害。
