infected twig

例句：

1. 1. The tree had been badly damaged by the disease and needed to be cut down.
   这棵树因为疾病而严重受损，需要砍掉。
2. 2. The infected twig was a danger to anyone who touched it.
   感染的树枝对任何人接触它都是危险的。
3. 3.The infected twig was removed from the garden to prevent further spread of the disease.
   将感染的树枝从花园中移除，以防止疾病的进一步传播。