heavyweight

1. N-COUNT A heavyweight is a boxer weighing more than 175 pounds and therefore in the heaviest class. 重量级拳击手

2. N-COUNT If you refer to a person or organization as a heavyweight, you mean that they have a lot of influence, experience, and importance in a particular field, subject, or activity. 极具影响力的人 (或组织)

He was a political heavyweight. 他当时是一位政界要人。