jointweed

例句：

1. 1.The farmer had to pull out the jointweeds from his field.
   农民不得不从他的田地里拔除杂草。
2. 2.The jointweeds were growing so thick that they blocked the path.
   杂草长得又厚又密，挡住了路径。
3. 3.Jointweeds are a common problem in many gardens and parks.
   在许多花园和公园中，杂草是一种常见的问题。