“俱乐部卡”和“蜂蜜卡”在英国的成功使得积分卡奖励制度的怀疑者不得不重新思考。
The success of Clubcard and Nectar in Britain seems to have persuaded a leading rewards-card sceptic to rethink.
当你不得不用到微积分或生化学继续进行时,那你有必要回炉重炼了。
While this isn't going to work for your advanced level calculus or biochemical courses, the idea is that you should dumb down the information so it becomes obvious.
如果要计算沿这条曲线的线积分,我们不得不把它分解成3部分。
If we want to compute the line integral along this guy then we have to break it into a sum of three terms.
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