Some of the diseases are well known, such as rheumatoid arthritis, multiple sclerosis and type-one diabetes.

VOA: special.2009.04.14

Relative to the whole market, It's well known that over periods of multiple decades the market has a tendency to go up.

是和整个市场相关的对吗，我们都知道经过几十年的时间周期,市场会有上涨的倾向。

麻省理工公开课 - 计算机科学及编程导论课程节选

Well, a movement is simply an independent piece, that works oftentimes-- if there arre multiple movements in a symphony or concerto-- works with other movements.

简单来说,乐章就是些各自独立的篇章,在一首交响曲或协奏曲内,和其他的乐章和谐统一

耶鲁公开课 - 聆听音乐课程节选

Well, let's look at multiple bonds.

下面，让我们讨论一下多重键。

麻省理工公开课 - 固态化学导论课程节选