Although experts have warned for years that heart attack symptoms in women can be subtle and easy to miss, studies show that doctors are still slow to make the diagnosis.

尽管多年来专家们一直警告说，女性心脏病发作的症状不易察觉而容易被忽视，调查表明，医生们作出诊断仍然缓慢。

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You'll need to ask those you speak with for feedback and make sure they can correct your pronunciations and grammar, although experts say you need not worry too much about grammar in the early stages.

与你交谈过的人应给你回馈，你须确保他们能够更正你的发音和语法，尽管专家表示在初级阶段，不用过于在意语法问题。

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Although the origins are uncertain, experts think that this is largely due to the high level of volcanic activity in the area.

尽管起源还不确定，专家认为这主要是由该地区频繁的火山喷发所造成的。

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Inspite of several ground breaking studies on autism, there is no single treatment or cure, although experts say certain therapies and educational approaches reduce the challenges associated with the condition.

VOA: standard.2010.03.23

It was nicknamed Swine Flu, although a few months later public health experts began calling it by its proper name: H1N1.

VOA: standard.2009.12.25

Although the legality of office betting pools varies from state to state, experts estimate that billions of dollars are wagered on the tournament.

VOA: standard.2009.03.25

Preliminary results were encouraging, and even showed a benefit on reducing deaths in one dose--although experts warn to view that as preliminary until a larger study is done.

FORBES: ACC Conference

This US study suggests a shift in the age of those experiencing stroke, from the old to the young, although experts say the findings need to be treated with caution.

BBC: Strokes in young people 'rising', study finds

Canadian health officials will be using a stockpile of vaccine to make the shots easily available during the games -- although experts point out that it takes seven to 10 days to develop immunity after the vaccine.

CNN: Canada's Olympic-sized plan to fight H1N1