in hand at hand on hand 分别是虾米意思
问题描述：
in hand at hand on hand 分别是虾米意思
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答
举例说明吧in hand 指（掌握在）...手里:your fate is in my hand 你的命运掌握在我的手心里the right is in your hand 权力掌握在你的手心里at hand 指在手边（即将到来,在附近）He always kept the picture of his...