记忆方法
将“expanding”与“ex”联系起来，想象一个“ex”cellent（极好的）扩张过程，就像一块板子或界限在向外扩展，这样就记住了“expanding”意味着扩展或扩张的意思。
机器生成的内容难免有错，看到不靠谱的拆解请告诉我们
权威例句
- 1. Engineers noticed that the pipes were not expanding as expected.
- 工程师注意到管道并没有如预期那样膨胀。
- 2. The trade deficit is the flip side of a rapidly expanding economy.
- 贸易赤字是经济快速发展带来的负面产物。
- 3. The economy is expanding, notching up high growth rates.
- 经济在发展，实现了高增长率。
- 4. The company has been expanding its customer base using trade magazine advertising.
- 公司一直通过在商业杂志上刊登广告扩展客户群。
- 5. Einstein's equations showed the Universe to be expanding.
- 爱因斯坦的方程式表明宇宙正在膨胀。