test with difficult questions
[query and argue again and again;test with difficult questions] 反复辩难 [pay one’s respects(usu.to elders);wish one's elders good health] 向尊长询问安好 ..
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test with difficult questions
用难的问题测试
以上为机器翻译结果，长、整句建议使用 人工翻译 。