蹑足
niè zú
- 动walk on tiptoe;tread softly;walk with light steps;insinuate self into
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蹑足
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(1) [lighten (one's step)]∶放轻脚步走
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他蹑足溜到门口
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(2) [take one's position in]∶插足,等于说出身
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蹑足行伍之间。--汉. 贾谊《过秦论》