| 释义 |
DEFINITIVE EXAMPLES 权威例句〔canker〕The only effective method of avoiding canker in poplar trees is to plant resistant varieties.避免杨树溃疡病的唯一有效方法是种植抗病品种。外研社新世纪〔citrus canker〕A destructive bacterial disease of citrus plants that attacks seedlings and mature plants and causes defoliation and death.柑橘溃疡病：柑橘的破坏性细菌病害，其侵害柑橘树树苗和成树并导致落叶和死亡美国传统Once the drug is approved for sale, doctors will be able to prescribe it for ulcers.一旦该药批准销售，医生就可以开方子用来治溃疡病。剑桥国际 |