They were uncertain of the total value of the transaction.
他们不清楚这笔交易的总额。
Were they uncertain of what to say?
他们不确定要说些什么吗？
He walked out, feeling rather uncertain of himself. He was very cold and frightened.
他走了出来，实在不知道自己该怎么办才好。他感到很冷，很害怕。
He walked out, feeling rather uncertain of himself. He was very cold and frightened.
他走了出来，实在不知道自己该怎么办才好。他感到很冷，很害怕。
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