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1·He did not speculate on the future of his tenuous career.

他没有考虑到自己不稳定的职业前景。《柯林斯英汉双解大词典》

2·This has led scientists to speculate on the existence of other galaxies.

这就使得科学家推测还有其他星系存在。《牛津词典》

3·He refused to speculate on the possible effects on relations between the two governments.

他拒绝猜测这对两国政府关系可能产生的影响。

4·He likes to speculate on the stock market.

他喜欢炒股。《牛津词典》

5·We speculate on the markets.

我们对市场进行展望。

6·She speculate on the exchange.

她做证券投机买卖。

7·Even to speculate on it is a gain.

即使思索一下也是一种收获。

8·She can only speculate on the amount of damage done.

她只知道推测损失额的方法。

9·If you want to speculate on the next bubble, it's up to you.

你是否想在下一轮泡沫中投机要由你自己决定。

10·Shah would not speculate on who may be behind the bombing.

他不愿猜测谁是幕后主使者。

推测

1·This has led scientists to speculate on the existence of other galaxies.

这就使得科学家推测还有其他星系存在。《牛津词典》

2·As far as the future is concerned don't speculate on what might happen but imagine what you can make happen.

事关未来时，不要推测可能会发生什么事，要设想你能让什么事发生。

3·In order to speculate on and understand this character, we must begin, as in all things, at the beginning.

为了推测和了解这个人物，我们必须把整个剧情从头来看。

4·No great power has done the same publicly, but one can only speculate on what plans are being hatched behind closed doors.

迄今尚没有一个大国大张旗鼓地这样做，但并不妨碍人们推测：某些计划正在暗地酝酿中。

5·I don't speculate on any weakness or future weakness of Man United, said Wenger.

“我不会推测曼联任何弱点，或者曼联未来任何弱点，”温格说。