重点讲解：
1. no sign of 没有什么的迹象
例句：So far, there has been no sign of such a spillover effect this time around.
目前，周围还没有出现这种溢出效应的迹象。

2.Hang on 等一下
例句：Please hang on a minute. I'll check it for you.
我帮您查一下，请稍等。

3.pump into 泵送入；注入；灌输
例句：A lot of people think it a good idea to reduce the amount of carbon dioxide we pump into the atmosphere.
很多人认为，削减我们排放到大气中的二氧化碳是个好主意。

4.gush through 喷涌
例句：A broken 42 inch water main caused water to go gush up through a street.
一条破裂的42英寸的水管造成水喷涌到街道上来。