Instrumental
英英释意：involved in an important way in making Sth. happen
「有用的，起作用的」
Helpful/useful:contributory/influential/
active
例句：
1. Details are instrumental in making/achieving success.
细节决定成败。
2. In your inimitable and wonderful ways, you have been instrumental in helping me finish the book/bring this book to life.
Crazy Rich Asians acknowledge
TE原文：
Jackie Chan, who was instrumental in bringing about the ban on selling/the sale of elephant iron, has recently thrown his weight behind the pangolin.
Bring about 造成，带来
Throw one's weight on（利用影响力）支持
Pangolin 穿山甲（重音在第二音节）
造句：
1. Education has been (highly) instrumental in changing/transforming my life.
教育改变了我的命运。
参考翻译：
Education has been an instrumental tool in shaping my destiny.
2. 场景：与图书管理员对话中
造句： The Dewey Decimal Syaem has been highly instrumental in helping you find any specific book.
