科学美国人60秒 SSS Old New England Underground May Be Spry after All
时间：2019-02-14 作者：英语课 分类：2018年科学美国人4月
英语课
The U.S. Northeast may be more geologically active than was previously 1 thought, according to a seismic 2 sensor 3 network.
Full Transcript
Hi, I’m Scientific American podcast editor Steve Mirsky. And here’s a short piece from the April issue of the magazine, in the section we call Advances: Dispatches from the Frontiers of Science, Technology and Medicine:
Hot Rocks by Shannon Hall
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收听单词发音 1
previously
adv.以前，先前（地）
参考例句：
The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
Let me digress for a moment and explain what had happened previously.让我岔开一会儿，解释原先发生了什么。
2
seismic
a.地震的，地震强度的
参考例句：
Earthquakes produce two types of seismic waves.地震产生两种地震波。
The latest seismic activity was also felt in northern Kenya.肯尼亚北部也感觉到了最近的地震活动。
3
sensor
n.传感器，探测设备，感觉器（官）
参考例句：
The temperature sensor is enclosed in a protective well.温度传感器密封在保护套管中。
He plugged the sensor into a outlet.他把传感器插进电源插座。
adv.以前，先前（地）
- The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
- Let me digress for a moment and explain what had happened previously.让我岔开一会儿，解释原先发生了什么。
a.地震的，地震强度的
- Earthquakes produce two types of seismic waves.地震产生两种地震波。
- The latest seismic activity was also felt in northern Kenya.肯尼亚北部也感觉到了最近的地震活动。