extension of short term record

例句：

1. 1. The company has decided to extend its reach into new markets.
   公司决定将其业务扩展到新的市场。
2. 2. The train's extension is due to arrive at the station in two hours.
   火车的延长部分将在两小时后到达车站。
3. 3. The scientist extended his theory to explain the phenomenon.
   科学家将他的理论扩展到解释这一现象。