its hard to tell the weather
天气很难预测
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The incident occurred in bad weather and in the middle of the night, when Switzerland is hard to tell apart from its neighbors.
这次事故发生时天气很糟糕，而且是在半夜，当时瑞士和它的邻居很难区分。
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