Scientists are becoming increasingly unsure of the validity of this technique.
科学家们越来越拿不准这一技术是否正当合法。
《柯林斯高阶英汉双解学习词典》
Harry's affection for Ginny continues to grow but he continues to be unsure of his feelings.
哈利对金妮的感情继续增长,但他对自己的感觉仍不确定.
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尼姆偶然之中知道了这种安排,他简直不知道是应该感激 、 气恼还是觉得有趣才好.
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However, some pork producers are unsure how the virus could affect their animals.
然而, 对于该病毒将如何影响他们饲养的那些牲畜,一些猪肉生产商并不确定.
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But many practicing it today are very unsure of what they are looking for.
但是现在修习的人仍然觉察不到他们究竟所求何物.
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Your duration cannot be set to zero. Please select Unknown if unsure.
您的持续时间不能设置为零. 如果不确定,请选择未知.
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