bell the cat

1. 為別人冒險
   All the workers agreed that they wanted a pay increase, but nobody offered to bell the cat and talked to their employer.

   所有的工人都認為要加薪，但卻沒人自告奮勇去跟老板談。

let the cat out of the bag

1. 洩漏祕密
   The criminal was hiding away from the police, but a small boy let the cat out of the bag when he told the police that there was a man in the house.

   罪犯正躲避警方的搜查，但一位小男孩洩漏了祕密，他告訴警方屋裡有一個男人。

rain cats and dogs

1. 下傾盆大雨
   It rains cats and dogs here during the spring.

   春季這裡會下傾盆大雨。

   It's raining cats and dogs outside.

   外面正下著傾盆大雨。

• the cat's pyjamas (or the cat's meow)
  chiefly N. Amer. another term for the cat's whiskers (see cat's whisker).
• let the cat out of the bag
  informal reveal a secret carelessly or by mistake.
• like a cat on a hot tin roof (Brit. also on hot bricks)
  informal very agitated or anxious.
• not have a cat in hell's chance
  informal have no chance at all.
• put (or set) the cat among the pigeons
  Brit. say or do something likely to cause trouble or controversy.
• see which way the cat jumps
  informal see what direction events are taking before committing oneself.