腓尼基广泛的贸易需要大量的簿记和通信，而腓尼基人对世界历史最持久的贡献就是在写作领域。
The extensive trade of Phoenicia required much book-keeping and correspondence, and it was in the field of writing that the Phoenicians made their most lasting contribution to world history.
他最持久不变的特质是孩子般的天真无邪。
正如这里所指出的，社会疗法最明显的缺陷是它不能持久地发挥良好的作用。
The most glaring flaw of the social cure as it's presented here is that it doesn't work very well for very long.
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