極急！！！！有英文可形容隻手遮天嘛？

根據你的補充資料, 我會建議你用 DICTATE 這個字, 比較配合你所需. 這個字超出命令的意思, 是說人一權獨大 (字典說是 with total authority...) , 有獨裁意思, 接近你想要的 "隻手遮天".

There are few of them, the usage of the words are mainly depended on the situations

Colloquial:
Ownage (noun)
Pwnage (noun)
Own (verb)

Formal:
Dominate ==> (most common)
Rule
Ace

it really depends on how you would like to word it. If you tell us what you're writing about maybe we can help you. personally i would think it would be 'getting away with it', but i'm not quite sure if that is what you want.