We know, however, that we must not be complacent because the challenges ahead are indeed very daunting.

但我们知道，我们绝不可以得意自满，因为前路上的挑战确实非常艰巨。

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Nevertheless, we must not be complacent but continue our self-criticism and strive for further progress.

但是我们不应该自满，我们还要继续作自我批评，还要继续求进步。

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It shows small actions can make the biggest difference, but we must not be complacent as there is always more we can all do to reduce waste and recycle what we use.

这也显示了小小的举措却能带来巨大的改变，不过我们也不可骄傲自满，因为在减少浪费和回收利用方面，我们能做的还远远不止这些。

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There have been no infant deaths associated with the illness so far this year in Wales, but we must not be complacent.

BBC: baby being vaccinated

Folkestone look to maintain their good form away to a Horsham side stung by the FA Cup defeat at the weekend and Cugley says his side must not be complacent.

BBC: Folkestone boss admits they will struggle to survive