1. 钩镰：bilharziasis 血吸虫病 | billhook 钩镰 | binate 双生的

2. 砍刀：bilge saw 桶板锯 | billhook 砍刀 | bind 夹锯

3. 铊镰：billhead 空白单据 | billhook 铊镰 | billhook 铊镰

4. 修枝砍刀：billhead 印有企业名称地址的空白单据 | billhook 修枝砍刀 | billiard-ballcollision 弹性碰撞

noun

1. a long-handled saw with a curved blade

    e.g. he used a bill to prune branches off of the tree

    Synonym: bill