例句與造句

1. During the time of the CCC, enrollees planted nearly 3 billion trees to help reforest America, constructed trails, lodges and related facilities in more than 800 parks nationwide and upgraded most state parks, updated forest fire fighting methods, and built a network of service buildings and public roadways in remote areas.
2. It's difficult to find fire fighting method in a sentence. 用fire fighting method造句挺難的