副詞 to boot:

1. by way of addition; furthermore
   同義詞：additionally, in addition

1. He is dishonest, and a coward to boot!
   他為人不誠實，還是個膽小鬼呢。
2. She's an attractive woman, and wealthy to boot.
   她是個很有魅力的女人，而且很富有。
3. He not only got fifty dollars, but they bought him dinner to boot.
   他不僅得了50美元，而且他們還請他吃了頓飯。