風聲鶴唳

1. • lit. wind sighing and crane calling (idiom)
2. • fig. to panic at the slightest move
3. • to be jittery

Character by character

• 風(fēng)wind
• 聲(shēng)sound
• 鶴(hè)crane
• 唳(lì)cry of a crane or wild goose