Students are normally expected to prepare work in advance for seminars and tutorials and this can take the form of researching a topic for discussion, by writing essays or by solving problems.

学生通常需要提前为研讨会和辅导课准备工作，这可以采取研究讨论主题、写论文或解决问题的形式。

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If you plan your menus a week or a month in advance, you will be able to take advantage of sales and bulk buying opportunities.

如果你提前一个月或一个星期规划一下你的菜单的话，你就可以充分利用打折和批量买进的机会。

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The mice needed to take the drug in advance of a heart attack in order for it to be effective.

为了使这种药物起作用，实验小鼠需要在心脏病发作之前服用此药物。

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"The key was to take a position in advance of the then-fashionable theory, " says Browne.

FORBES: Going deep

If the base falls, there are few defences left to prevent the fall of Laiza, should the Burmese military decide to take it, he adds, and a Burmese military advance would certainly force the flight of many thousands of civilians.

BBC: Burma attack breaks Kachin truce near China border

And, April, there are important things that have to happen in Congress and around the country to meet the concerns and to meet the problems that we face, the challenges that we have that are required that we take action on well in advance of the calendar of a presidential election.

WHITEHOUSE: Press Briefing