Significantly, olive oil is full of Omega 9, but low in the other two. So do we need to switch?

值得注意的是，橄榄油富含欧米加9 ，但其他两个的含量较低，所以我们需要换其他油吗？

youdao

Some are looking to clean their air of conventional pollutants, which could encourage some companies to switch to low - or no-carbon alternatives.

有些国家准备将传统污染物从空气中清除出去，这将鼓励一些公司转移到低碳或无碳替代方案上来。

youdao

Under the new rule, by 2015, existing boilers must switch from No. 6 oil to a low-sulfur version of the No. 4 heating oil or to an equivalent cleaner fuel.

按照这项新法规，截止2015年，现存锅炉必须由6号燃料油换成4号低硫型燃料油或与之相当的较为清洁的燃料。

youdao

So, if you'd like to switch into one of these three, they have very low numbers right now.

如果你们想要更改去上这三个课程，还有些名额。

麻省理工公开课 - 固态化学导论课程节选

First, pork prices have been too low in recent years, causing many farmers to switch to the production of other types of livestock.

FORBES: Pork Prices and Inflation

Mr Perret said France Telecom had partnered with Baidu because the search firm had helped mobile networks in in its home market of China cope with a similar switch from basic mobiles to low-end smartphones.

BBC: Egypt phone

If the only thing keeping you from making a switch to low-cost mobile provider Ting is the pain of early termination fees, we've got a bit of good news: come February 1st, you can tell your current carrier to get lost.

ENGADGET