例句與造句

1. Having no fire trace in use of carbon dioxide , it is widely used in oil storeroom , wharf , town communication central , automatic control
   用二氧化碳滅火不留痕跡，可廣泛用于油庫、碼頭、升式通訊樞紐、自動化控制室、計算機中心及高科技園地等場所。
2. It's difficult to find fire trace in a sentence. 用fire trace造句挺難的