But echidnas are mammals, so they feed their young, called puggles,with milk.

VOA: special.2009.07.07

So, the bowlers do their bowling and sometimes they knock down all the pins, which is called a what? A strike.

投球手投球时,有时他们撞到了所有障碍物，这叫什么呢，全打。

耶鲁公开课 - 心理学导论课程节选

Many gained their freedom through the so-called "underground railroad."

VOA: special.2009.04.16

Preschoolers who attend these so-called 'forest kindergartens' spend all their time learning outside from nature.

VOA: standard.2010.06.25

"We should take the Pakistani Taliban, and specifically the so-called TTP, Tehrik-e-Taliban Pakistan, at their word, "Their leaders have been saying for some time that they want to strike targets outside their own region, and they've talked about the United States, they've talked about the U.K.

VOA: standard.2010.05.05

"Let's go from here," he said "Let's scrap the bill. Let's build health care reform that respects the limited government and liberty of the American people, so help us God!" Grassroots conservatives, many of them members of the so-called Tea Party movement, are out in force at the rally, eager to spread their anti-Obama, anti-tax,anti-big government message.

VOA: standard.2010.03.18