让用户知道某些东西出了错，而且建议一系列挽救措施。
Letting users know something went wrong helps, but suggesting a course of action helps more.
迈克洛夫教授指出，漱口水应需处方才能购买，而且建议只能短期使用。
He said they should only be available with a prescription and for short-term use.
这篇文章不仅描述了……而且建议了一些可行的解决问题的方法。
This article not only describes... but also suggests some feasible ways to solve the problem.
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