例句與造句

1. Clean fuels, newer cars and the use of mass transit by more individuals helped reduce the number of ozone exceedence days.
2. It's hard to know why a particular exceedence occurs, " said Bernard Franklin, acting chief environmental health specialist.
3. "We've come a long way, and we're at the point now where it's hard to get ( high levels of carbon monoxide ), " said Joe Cassmassi, senior meteorologist with the AQMD . " There is the outside likelihood that we could see an exceedence in 2003, but that likelihood goes down every year as there are cleaner cars on the road ."
4. It's difficult to find exceedence in a sentence. 用exceedence造句挺難的