[00:10]The pitched roofs have enabled homeowners to easily install ceiling insulation.
[00:17]Interior and exterior walls are brick,
[00:21]providing high thermal mass that tends to even out day-night temperatures.
[00:34]He might fool some people for a little while through misleading advertising.
[00:40]He will not do so for long,
[00:42]for mercifully the public has the good sense not to buy the inferior article
[00:48]more than once.
[00:55]Unlike most of the world's volcanoes,
[00:57]the hot spots are not always found at the boundaries
[01:01]of the great drifting plates that make up the earth's surface;
[01:06]on the contrary, many of them lie deep in the interior of a plate.
[01:17]He adds humbly that perhaps he was "superior to the common run of men
[01:23]in noticing things which easily escape attention,
[01:27]and in observing them carefully."
[01:34]Why mention the elementary schools?
[01:37]Because thanks to these schools our early mechanics,
[01:41]especially in the New England and Middle Atlantic states,
[01:45]were generally literate and at home in arithmetic
[01:49]and in some aspects of geometry and trigonometry.
[01:58]In order to achieve objective, we must concentrate more on co-productions,
[02:03]the exchange of news, documentary services and training.
[02:12]A: Don't stomp when you walk on the ice on the top of the river.
[02:16]B: Got it.内容来自 听力课堂网：http://www.tingclass.net/show-8124-237731-1.html