Meaning of gōng:
攻
to attack; to accuse; to study
Zhànshìmen kāishǐ zhǔnbèi gōngjī dírén.
战士们开始准备攻击敌人。
The soldiers began to prepare to attack the enemy.
Tā méiyǒu zhèngjù jiù kāishǐ gōngjī tā de duìshǒu.
他没有证据就开始攻击他的对手。
He began to accuse his opponent without any evidence.
Tā zhèngzài nǔlì gōngdú shùxué kèchéng.
他正在努力攻读数学课程。
He is diligently studying the mathematics course.
(LGBT) top
Tā zài zhè yī duàn guānxì zhōng yīzhí shì gōng.
他在这一段关系中一直是攻。
In this relationship, he has always been the top.