他仔细思考了有关的种种困难。

He pondered over the difficulties involved.

《柯林斯英汉双解大词典》

为了取得成功，他们必须自己去应对种种困难。

To succeed, they must take the lead by developing coping strategies themselves.

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在了解到灾害的严重程度之后，我们必须提前为今后救灾的种种困难做好准备。

We must be prepared for difficult hours and days ahead as we learn about the scope of the tragedy.

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