例句與造句

1. They are often thought of as an indicator of poor tree vigor.
2. This results is decreased tree vigor and reduced fruit yield.
3. This mild fall allowed for new root growth throughout the fall and winter, needed for renewed tree vigor.
4. Repeated attacks of leaf blight, though rarely killing more than 20 % of the leaves, ultimately reduce tree vigor.
5. It's difficult to find tree vigor in a sentence. 用tree vigor造句挺難的