Look out 和 Watch out 有什麼不同?

Watch out has a sense of warning in it... such as ..
Watch out !! Don't step on the water.

Look out has less sense of warning , and the danger is not as close as watch out ... such as ..
Look out ! There is a car coming towards us.

ＬＯＯＫ－ＯＵＴ解作小心
EXAMPLE:LOOK OUT!THERE 'S A CAR COMING
小心！有輛汽車來了。

WATCH OUT解作提防、戒備
EXAMPLE:THE STAFF WERE ASKED TO WATCH OUT FOR FORGED BANKNOTES
已經要求職員留意偽鈔。