again recurrence
再次复发
以上为机器翻译结果，长、整句建议使用 人工翻译 。
It is unwise to say that the trouble will not happen again, and the writer should content himself with stating that every effort will be made to prevent its recurrence.
回信中说保证今后不再发生这类问题，这是不明智的。只能说今后当尽力避免发生类似事件。
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