second sound [低温] 第二声 ; 第二类声
second heart sound 第二心音
accentuation of second heart sound 第二心音亢进
pulmonic second sound 肺动脉第二音
second sound wave 二次声波
second sound field 次级声场
second sound carrier [电视] 第二伴音载波
second sound channel 第二伴音通道
(Sound) Meanwhile in Kabul, Afghans clashed with police for the second day during protests held over allegations that foreign troops had desecrated the Muslim holy book,the Koran.
VOA: standard.2009.10.26
And this is going to sound like a weird topic, we're going to see why it's of value in a second.
这听起来像个怪异的主题,我们将会去学习一刹那。
The second one is going to be sound that's going to come on at the end.
第二段影片的最后会有些声音
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