underlying
It's the economist's mission to try to find out the underlying causes of the depression.
unprecedented
People's living standards have been rising steadily and China's comprehensive strength has been clearly enhanced. This is an unprecedented miracle in China's history.
unveil
The queen unveiled a statue of Prince Albert.
void
The desert stretching away before the traveler seemed frighteningly void.
vow
The couple exchanged vows in a romantic Labor Day sunset ceremony on Maui. （
vulgar
The houses and cars of the newly rich are huge but vulgar.