這樣如何？

請不要把菸灰彈入此處! 

Cigarette Ash Forbidden

應該是：No Cigarette Ash

  

小心地滑

Slippery Floor

應該是：Watch out, flippery floor

 

關懷弱勢兒童

Care for Disadvantaged Children

應該是：Show your love and care for those less fortunate children.

 

不可回收

Non-Recyclable

 

文明機場

Airport of Superb Service

 

老弱病殘孕」的坐椅  （on bus)

Seat for Disabled

當心碰頭

Mind Your Head

應該是：Watch for xxx, e.g. overhead bar.