"The red wigglers are the best varieties for doing it because they are more of a surface feeder.

VOA: special.2011.07.05

There are at least two varieties of imagination in the reader's case, so let us see which of the two is the right one to use in reading a book.

读者至少有两种不同的想象方式,所以让我们来看看,哪一种,适合读书。

耶鲁公开课 - 1945年后的美国小说课程节选

so it helps one individual to understand just the varieties of language and

这能帮一个人了解不同的语言，还有

五年级 - SpeakingMax英语口语达人

And he worked in the laboratory to breed new wheat varieties that could resist disease.

VOA: special.2009.09.22

Iser We may or may not have the lecture on Iser, but on Tuesday we'll be getting into the varieties of formalism and first we'll take up the American New Criticism.

我们将来可能有一讲会详细介绍，但下周二我们讲各种形式主义,首先是美国新批评。

耶鲁公开课 - 文学理论导论课程节选

Most potato varieties carry four separate copies of their genes.

VOA: special.2009.11.03

As we'll talk about later in the class, the biodiversity has shrunk so what used to be hundreds of varieties of corn is now just a few.

像我们后面所要提到的,玉米种群的生物多样性已经从曾经的,几百种减少到了现在的几种

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

There are many varieties of mums.

VOA: special.2010.06.29

You will find very rare of the case of a Greek city, which is founded away from the sea; they always wanted to be close to the sea for varieties of reasons.

你会发现希腊城市中很少见的现象,那就是它们远离大海,诸多的原因致使希腊人,愿意把城市建设在离海近的地方

耶鲁公开课 - 古希腊历史简介课程节选

Instead,they mated hundreds of varieties of rice.

VOA: special.2011.02.22

There's a lot of varieties which-- okay.

有很多变化

耶鲁公开课 - 聆听音乐课程节选

To address this issue, the International Rice Research Institute,or IRRI, is working towards developing varieties of white rice whose starch is released slowly.

VOA: standard.2010.06.25

So there are these varieties of ways for describing what's going on in a text.

所以，有各种不同的方法,可以描述文本。

耶鲁公开课 - 文学理论导论课程节选

The Royal Society says farmers will have to grow improved crop varieties to meet growing food demands.

VOA: standard.2009.10.21

As I'll explain later in class, in Florida there used to be many, many, many varieties of oranges and now there are about four and there are commercials reasons for this occurring.

稍后我会详细解释,在佛罗里达州曾经有很多种类的橙子,而现在那里大概仅剩四种,这一切的发生归咎于商业上的原因

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

But his big breakthrough came later, breeding high-yielding wheat varieties that more than tripled the harvest.

VOA: standard.2009.09.16

"This is a new strain of stem rust organism that has the power to destroy most of the wheat varieties being grown around the world."

VOA: standard.2009.09.16

One of the first advancements researchers are working on is scanning tens of thousands of different soybean varieties, including wild relatives, to look for useful traits.

VOA: standard.2010.02.01

Since the 19th century it has systematically collected all varieties of fossilized skeletons.

VOA: standard.2009.12.08

Helping breeders quickly develop better varieties of all these crops will be crucial as the world population tops 9 billion by 2050 in the face of a changing climate.

VOA: standard.2010.02.01

In 1944,when many experts warned of mass starvation in developing nations where populations were expanding faster than crop production, Borlaug began work at a Rockefeller Foundation-funded project in Mexico to increase wheat production by developing higher-yielding varieties of the crop.

VOA: standard.2009.09.13

"And so once we understand the genetics, we can try and just take those particular genes and work with popular varieties of rice to cross those particular genes into a popular variety and still maintain the expected cooking and eating qualities of the grain."

VOA: standard.2010.06.25