Orders for commercial airplanes are expected to be lower this year, as airlines cope with an expected America's Boeing executives in Dubai put on a brave face, saying that fulfilling back orders will keep their production lines busy.

VOA: standard.2009.11.15

But if I did have two lines of code or more, I would in fact need to put those back.

但是如果我的确有两行或更多的代码，我其实应该把花括号加上。

哈佛公开课 - 计算机科学课程节选

At least you maybe finding that and if not when you look back at the code you then have written you'll realize that in fact it just requires a few lines of code.

至少你会发现这一点，不然的话，在你写完代码，返回去,看的时候你会意识到,实际上它只需要几行代码。

哈佛公开课 - 计算机科学课程节选

So, initially they came up with four lines and then eventually five and even six, and then they went back to five by the fifteenth century.

那么,他们最初提出的是四条线,但是最终却是五条线,甚至六条线,然后在十五世纪又回到了五条线

耶鲁公开课 - 聆听音乐课程节选

Well one reason I want to go back is you'll notice I've been putting up these lines on the board and when we visited elections on the second day, we said that you could think of that line on the board, as being not just left wing, right wing politics but also some dimension of products.

原因之一是我想你们将注意到,我在黑板上画了一条线,当我学习第二天学习的选举时,我们讲过你们可以想象黑板上有条线,不仅是左派和右派的政治家,还可以是某种产品特性

耶鲁公开课 - 博弈论课程节选

First there was the observation by Michelson who back in the late 1880s had done very precise interferal metric measurements of the hydrogen lines and had observed that the 656 nanometer line 3 associated with the transition of n equals 3 to n equals 2 was, in fact, a doublet.

首先是麦克逊,在1880年底的观察,他以公制单位对氢原子的光谱线,作了准确的，无其他因素干扰的，测量,发现当n值由3变为2时,会同时得到波长为656纳米的谱线3,实际上是有两条线。

麻省理工公开课 - 固态化学导论课程节选