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在坡頂絕不要企圖超車.Never attempt to overtake on the crest of a hill.最后的一番苦掙扎終于把郵車拉上了坡頂.The last burst carried the mail to the summit of the hill.在坡頂處, 重力逐漸產(chǎn)生動量,將車體向下拉.At the top of the hill, gravity pulls the train down building...

“坡頂”的英語可以翻譯為：[交]top of slope ...