However,he made a surprise appearance at the Democratic National Convention to support Barack Obama's candidacy for president.

VOA: special.2009.09.13

The mathematical theory of probability was unknown until that time and you can see that insurance suddenly made an appearance at that time.

在那之前,概率的数学理论,是不存在的,而随着概率论的出现,保险业也突然出现了

耶鲁公开课 - 金融市场课程节选

Benny made his first appearance on radio in Nineteen Thirty-Two.

VOA: special.2009.10.11

Michael Owen made an appearance as substitute midway through the second half, but he made no impact and barely touched the ball.

BBC: Aston Villa 1-0 Newcastle

In the meantime, Apple finally made an appearance on the subject of the S4, yesterday.

FORBES: Tim Cook Will Sigh With Relief Following the S4 Launch Today

Prince Norodom Ranariddh, head of the royalist Funcinpec party, also made an appearance in Kompong Cham.

CNN: A VOTE FOR PEACE