annual weed

例句：

1. 1. The annual weeds were a major problem in the garden.
   这个年度杂草是花园里的主要问题。
2. 2.The farmer has been trying to control the annual weeds in his field.
   这位农民一直在试图控制他田地里的年度杂草。
3. 3. The annual weeds are a constant challenge for farmers.
   年度杂草是农民们的一个持续挑战。