Researchers tested new household enamel paints from twelve countries in Africa, Asia and South America.

VOA: special.2009.08.31

The next phase, concrete operations, from seven to twelve, you can solve the conservation problem, but still you're limited to the extent you're capable of abstract reasoning.

下一阶段,具体运算阶段,七到十二岁,儿童可以解决守恒问题,但儿童的抽象推理能力仍然有限

耶鲁公开课 - 心理学导论课程节选

Mister Medvedev's comments were televised from the republic of Dagestan, where two suicide bombers killed at least twelve people Wednesday.

VOA: special.2010.04.03

For example, around nineteen twelve he finished a nine-book series called "From the Cradle to the Grave."

VOA: special.2010.04.14

This year, the twelve-day festival showed more than one hundred and thirty movies from thirty-four countries.

VOA: special.2009.03.25

For example, the flag had forty-eight stars for forty-seven years, from nineteen twelve until nineteen fifty-nine.

VOA: special.2010.04.02

International applications increased by twelve percent from two thousand five to two thousand six.

VOA: special.2009.06.11

The first trees were a gift from Japan in nineteen twelve.

VOA: special.2010.02.23

They establish goals for each year from kindergarten through grade twelve.

VOA: special.2010.07.22

It began with twelve friends from the school orchestra.

VOA: special.2010.06.21

Terms can last from two to twelve years.

VOA: special.2009.06.12

"We're a small college, just twelve hundred students. But about fifteen percent of our undergraduates come from homes outside the United States, which is astronomically high for an American college or university."

VOA: special.2009.12.03