“踵”造句

'前'.''踵艏''. '柱'.''脚船的一部分,船首与船骨相接于此.
The part of a ship at which the prow joins the keel.

轴''.'踵'. ''轴承中能旋转的垂直的轴.
The part of a vertical shaft that turns in a bearing.

石油是今日贸易形势中的阿基利斯脚踵.
Oil is the Achilles'heel of the trade picture now.

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