Object lesson?

Sacrificial lamb

High wire act

Social fabric?

Bell cow?

Hit the hay?

Stop on a dime?

从翻译角度看中美高校校训[1]

Old saw?

Herculean proportions?

Swan song?

Going back to the drawing board?

Read the tea leaf?

Golden rule?

Rule of thumb?

让阅读《经济学人》成为一种享受

Soul searching

On a wing and a prayer

Peer review

Earn your keep?

Local democracy bites the dust

Tall poppy

Good Samaritan

Zero-hour contract

At the water’s edge?

Close to the bone

Tip of the iceberg?

We just got our head handed to us

Is Donald Trump a choke artist?

In the doghouse?