您要查找的是不是：
- The index of population density of dominant insect pest was increased greatly in those tea gardens with higher chemical insecticide expense, especially for tea leaf hopper (Empoasca vitis Gotho). 农药费用高的茶园优势害虫种群密度大，尤以假眼小绿叶蝉明显。
- Two important virus diseases, maize dwarf mosaic and stunt, both transmitted by leaf hoppers. 另外两种重要的病毒性疾病分别是玉米嵌纹病毒和萎缩性黑穗病，都是通过叶蝉传播。
- The olive leaf is a badge of peace. 橄榄叶是和平的象征。
- I saw him take a leaf out of the book. 我看见他从书上撕下一页。
- To move a hopper or stacker upward or downward. 上下移动送卡箱或接卡箱。
- The maple leaf is the emblem of Canada. 枫叶是加拿大的象征。
- The trees and shrubs were in full leaf. 那些树和灌木枝叶茂盛。
- One of several metal strips forming a leaf spring. 簧片构成片簧的几个金属片中的一个
- The central or principal vein of a leaf. 中脉中心的或主要的叶脉
- The trees come into leaf in spring. 春天，树木吐芽长叶。
- Many names have been put into the hopper. 许多名字已加入到名单中。
- You should take a leaf out of Tom's book. 你应该学学汤姆。
- A leaf came upon her book as she was reading. 她正读著书,一片树叶落到她的书上。
- The trees are just beginning to leaf. 树刚刚开始长叶子。
- Not a leaf nor an insect stirred. 不单是树叶，连个虫子都不动。
- Mrs Van Hopper gave her fat laugh. 范·霍珀太太纵声大笑。
- The giraffe eats tender leaf from the tree highly. 长颈鹿从高高的树上吃掉嫩树叶子。
- Mrs. Van Hopper gave her fat laugh. 范·霍珀太太纵声大笑。
- The falling leaf spiralled to the ground. 落叶盘旋著飘到了地上。
- Hopper: It's about keeping the ants in line. 草蜢:这事关对蚂蚁们的掌控。
