Rose was doubtful about the whole idea.
罗斯对整个设想持怀疑态度。
He was doubtful about accepting extra work.
他拿不定主意是否接受额外工作。
It's doubtful if this painting is a Picasso.
这未必就是毕加索的画。
With her injuries it's doubtful that she'll ever walk again.
她多处受伤，今后能否行走还很难说。
It's doubtful whether the car will last another year.
这辆汽车未必还能用上一年。
He is injured and is doubtful for the game tomorrow(= unlikely to play) .
他受了伤，明天未必能参赛。
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。
This wine is of doubtful quality.
这酒的质量有问题。
1.怀疑的,拿不准的,不太相信的 (of; about)
2.可疑的,有疑问的;未必好的
3.含糊的,暧昧的
4.难以预料的,未定局的
1.怀疑的,拿不准的,不太相信的 (of; about)
2.可疑的,有疑问的;未必好的
3.含糊的,暧昧的
4.难以预料的,未定局的
1.not certain or likely to happen or be true; unlikely to be doing something, especially playing in a game
2.not satisfactory or acceptable
3.not feeling certain about something
1.He went to his cousin's rescue when he saw him all at sea, and doubtful whether to laugh or to be angry.
他看见他的表弟这样茫然，笑也不好，气也不好，就赶快给他解围。
2.The old man ignored my doubtful reaction and started off in the direction in which he had just pointed, clearly intending me to follow him.
老汉没有理会我满脸的疑惑，却朝他所指的方向走去，显然要我跟着他。
3.the splendor of her shoulders , her frizzy hair might have made him doubtful.
她两肩的华丽衣饰，鬈缩的头发，很可能使他犹豫不决。
4.As most of you might have already heard from doubtful sources I decided to step off of my progaming career.
你们中的多数也许已经听说了关于我将退出职业生涯的各种消息。
5.Formerly I considered that it's for decoration, but it appears that this saying has many doubtful points, so I dare not be sure.
我原以为是穿装饰性刀穗子用的，看来这个说法也有不少疑点，故不干确定。
6.But Pearl's laugh, when she was caught, though full of merriment and music, made her mother more doubtful than before.
但珠儿被抓住的时候，她咯咯的笑声中虽然充满欢乐和鸣，却使母亲较前益发困惑。
7.At one time it was doubtful whether the company could recover from its financial difficulties, but the government loan seems to have helped.
曾经有一段时间，公司能否从困境中恢复元气令人生疑，不过政府的贷款似乎起了作用。
8.Morrel uttered a loud exclamation, and frantic, doubtful, dazzled, AS though by a celestial vision, he fell upon his knees.
莫雷尔发出一声大叫，他如痴如狂充满疑惑、象是看到了天堂的景象，感到头晕目眩似的跪了下去。
9.So far XML is still in its infancy, though it's doubtful that such a flexible language will go unsupported for long.
目前XML仍处于其幼年时期，虽然如此一个灵活的语言在无人支持的情况下能走多远仍是个疑问。
10.Baxter was already dead, so it's doubtful the port authorities would have considered it a legitimate emergency.
巴克斯特已经死了，因此港口当局是否会考虑这是合法的突然事件，这是很值得怀疑的。