The nature of eruption triggering, though, is not well understood.

然而触动火山喷发的原因还不是很清楚。

youdao

Around this time, the largest of these centers, Cuicuilco, was seriously affected by a volcanic eruption, with much of its agricultural land covered by lava.

大约在这个时候，这些中心中最大的 Cuicuilco 受到了火山喷发的严重影响，它的大部分农田被熔岩覆盖。

youdao

The 1980 volcanic eruption of Mount Saint Helens, for example, sent mud and debris into several tributaries of the Columbia River.

例如，1980年圣海伦斯火山爆发，导致哥伦比亚河的几条支流产生泥石流现象。

youdao

"Because there are only a couple of previous records of eruption at this particular volcano, it is difficult to judge either how long the activity will go on there, or how long the volcano might then be dormant before it goes active again."

VOA: standard.2010.04.15

Instead of monitoring volcanoes, what Congress should be monitoring is the eruption of spending in Washington D.C."

VOA: special.2009.02.27

He reported the eruption of the Osorno volcano and experienced an earthquake in Chile.

VOA: special.2009.02.27

This sort of election-eve scandal is like a volcano on the brink of eruption.

NPR: 'Washington Times' Calls for Hastert to Resign

Mount Rainier is also an active volcano - although there has been no activity since the 1850s and geologists say there is no imminent threat of eruption.

BBC: Seattle side trips in every direction

With no obvious successor in sight and the likelihood of an eruption of rivalries, Chicago's politics may get nastier again.

ECONOMIST: Chicago's current success may be about as good as it gets