The development of the soybean seedling is dependent on the food reserves stored in the cotyledons.

The cotyledons of the mature embryo are either green, yellow or chalky yellow.

成熟胚的子叶是绿色, 黄色或浅黄色.

The embryo consists of two large fleshy cotyledons.

胚有两片大而肉质的子叶.

Building a home from scratch can be both exciting and challenging.

建立一个全新的家庭既让人兴奋又富于挑战。

Most of the discussion was on what needed to be done now as we transitioned from the security issues to the challenging economic issues.

随着我们由安全议题转向具有挑战性的经济议题，讨论最多的就是目前需要做些什么。

Mike found a challenging job as a computer programmer.

迈克找到一份做计算机程序员的富有挑战性的工作。

Any trawl through the band's interviews will reveal statements that are challenging and incisive.

随便选取一段对该乐队的访谈都能发现令人深思、犀利精辟的言论.

He left a note at the scene of the crime, challenging detectives to catch him.

他在犯罪现场留了个条儿，向警探挑衅。

On PC, the game had it all — imaginative storyline and characters, challenging gameplay, superb graphics.

个人电脑里的游戏非常完美，从想象力丰富的故事情节及人物到富有挑战性的游戏设计和精美画面，应有尽有。

Many enjoy the mental stimulation of a challenging job.

很多人喜欢富有挑战性的工作所带来的强烈的精神刺激。

Mona gave him a challenging look.

莫娜挑衅地看了他一眼。

a challenging and rewarding career as a teacher

富有挑战性且有意义的教师职业

We have changed the course to make it more challenging.

我们改了课程以使其更具挑战性.

The new play poses some challenging questions.

这出新戏提出了一些富有挑战性的问题.

The newspaper was directly challenging the government's legitimacy.

报纸直接质疑政府的合法性.

It's important this team is challenging and that we're right there at the end.

球队具有战斗力是很重要的,那就是我们最终站到一起的原因.

There's no doubt that these are challenging times.

毫无疑问,目前经济环境对我们挑战极大.

She performed the most challenging task without a mistake.

她毫无差错地完成了这一最富有挑战性的任务.

Let's yell out beautiful, practical and challenging sentences to crack your pronunciation.

让我们喊出漂亮, 实用有意义的句子来突破英语发音.

Thus, empirical modeling of housing market behavior is a challenging task.

因此, 建构住宅市场行为的实证模型是一项极具挑战性的工作.

The scaling problem is the most challenging.

结垢是最复杂的问题.