His dog has a canker in its ear.
他的狗的耳朵上有一处溃疡。
Is hypocrisy the canker of our society?
虚伪是我们社会的弊端吗？
A canker-root stopped in that big tree.
一只黄鹂鸟落在那棵大树上。
Cold sores usually appear on the lip; canker sores affect the inside of the mouth.
溃疡往往发生在嘴唇上，主要影响口腔内部。
Cold sores usually appear on the lip; canker sores affect the inside of the mouth.
溃疡往往发生在嘴唇上，主要影响口腔内部。
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