He wrote both serious classical music and light popular music.

VOA: special.2009.08.02

Maybe they are exaggerations and I think to some degree they are but it's revealing that both of these very serious readers of Machiavelli took him to be an apostle of freedom.

也许他们过于夸张了，而且我认为,某种程度上他们确实是，但具有启迪意义的是,这两个严肃的马基雅维利的读者,都把他看作自由的传道者。

耶鲁公开课 - 政治哲学导论课程节选

The report commissioned by the U.N.Human Rights Council found that both sides committed serious human rights violations and violations of international humanitarian law.

VOA: standard.2009.11.04

U.N.officials described it as a very serious incident and urged both sides to exercise caution and restraint.

VOA: standard.2009.09.11

"It seems that more clarity is likely to emerge about who did what to whom and whether or not war crimes, crimes against humanity and other very serious human rights abuses were committed by one or both sides,"

VOA: standard.2009.10.25

Even if U.S.economic output expands in 2010 and more Americans head back to work, both critics and supporters of the president say the nation faces a more serious challenge to future economic viability: a rapidly growing deficit and a national debt estimated at more than $12 trillion.

VOA: standard.2010.01.15

"The talk issue is not going to be anything serious, other than buying time for both the Iranian regime and the Iranian opposition, because as far as the Iranian regime is concerned, no steps are being taken in the direction of bridging the gaps with the opposition anymore,".

VOA: standard.2009.10.12