His future success is doubtful.

I feel doubtful about his ability to do the work.

我怀疑他有无做这件事的能力。

词典精选例句

Ecologists argue that the benefits of treating sewage with disinfectants are doubtful.

生态学家认为用消毒剂处理污水是否有益值得怀疑。

柯林斯高阶英汉双解学习词典

Why did he sound so doubtful?

为什么他听上去如此不确定？

柯林斯高阶英汉双解学习词典

I was still very doubtful about the chances for success

我对能否成功仍然深表怀疑。

柯林斯高阶英汉双解学习词典

For a time it seemed doubtful that he would move at all

有一段时间他似乎根本不会搬家。

柯林斯高阶英汉双解学习词典

The arrangement is of doubtful legality.

这项约定是否合法值得怀疑。

《牛津高阶英汉双解词典》

It's doubtful if this painting is a Picasso.

这未必就是毕加索的画。

《牛津高阶英汉双解词典》

We were doubtful about the practicability of the plan.

我们怀疑这个计划是否切实可行。

《牛津高阶英汉双解词典》

This wine is of doubtful quality.

这酒的质量有问题。

《牛津高阶英汉双解词典》

At the beginning of the war things were looking very doubtful.

战争刚开始时，形势看上去很不明朗。

《牛津高阶英汉双解词典》

He is a doubtful character.

他是个可疑的人物。

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Determination of β-Carotene Content in Begonia Yunnanensis Levl by Reversed-Phase High Performance Liquid Chromatography

山海棠中β-胡萝卜素含量的反相高效液相色谱测定

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Changes of the Activity of Enzyme and the Content of Plant Hormones during Regeneration of Rieger Begonias

丽格海棠离体再生过程中酶活性及激素含量的变化

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Effect of Illumination on Induction and Proliferation of Rieger begonias Adventitious Bud

光照条件对丽格海棠不定芽诱导和增殖的影响

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Chromosome Numbers of Eight Taxa of Begonia from Yunnan

云南八种秋海棠属植物的染色体数目

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New Begonia Varieties& 'White King',' Silvery Pearl' and 'Tropical Girl'

秋海棠新品种&‘白王’、‘银珠’和‘热带女’

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This paper reports the organ culture and plantlets regeneration of Begonia President-Carnot.

本文叙述竹节秋海棠（Begonia President-Carnot）的器官培养与植株再生。

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Limits of the earth; begonia is for saving to float the.

天涯；海棠是为了救飘絮。

provided by jukuu

Study on Tissue Culture and Plantlet Regeneration of Begonia palmata D. Don

裂叶秋海棠组织培养及植株再生研究

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A new species of Begonia ( Begoniaceae) from SE Yunnan, China

云南东南部秋海棠属侧膜组一新种

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