a sacred cow

基本解释

Years ago he was a sacred cow in this field.
許多年以前，他在這個領域裡是個神聖不可侵犯的人物。
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If anything is a sacred cow (or triceratops) in the office, it’s the desktop computer.
如果辦公室裡有聖牛(或三角恐龍)，那麽它就是台式電腦。
Hindus consider the cow as a sacred animal. Bai said, “God will be pleased if I raise the cow.”
據悉，印度教教徒把母牛眡爲神聖的動物，白說：“我撫養它，上天會感到高興的。”

Commitment to the company's existing technology, product line, distribution system or customer base becomes a sacred cow.
FORBES
"I like people to treat their 401(k) as a sacred cow, " says Dee Lee , author of The Complete Idiot's Guide to 401(k) Plans.
FORBES: Ball And Chain Borrowing
The government has proposed to slaughter a sacred cow of industrial relations—a law permitting courts to order the rehiring, with compensation, of sacked workers.
ECONOMIST: Room for improvement