be clear的用法和樣例：
例句
- After the heavy snowfall the groundsman was whistling in the dark when he promised that the pitch would be clear for a three o'clock kick-off.
大雪之後，球場管理員答應3點鐘足球比賽之前能把球場清理乾淨時，他實在是在強鼓勇氣。 - I wish it to be clear that the decision is final.
我希望明確一下兒，這個決定是不可更改的。 - This should be clear even to the meanest intelligence.
就是對智 力最差的人來說，這也應當是很清楚的。
