名词
中文翻译：足部支撑物
同义词：
['sole', 'footplate', 'keel例句：1. The sailor used a sustentacular to support his weight while he was at sea.（水手在海上时使用一个足部支撑物来支撑他的重量。）2. The old man sat on the edge of the bed with his feet up on the footplate.（老人坐在床边的边上，脚放在脚踏板上。）']
例句：
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1. The sailor used a sustentacular to support his weight while he was at sea.
水手在海上时使用一个足部支撑物来支撑他的重量。
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2. The old man sat on the edge of the bed with his feet up on the footplate.
老人坐在床边的边上，脚放在脚踏板上。
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3. The ship's captain ordered the crew to remove the keel and replace it with a new one.
船长命令船员们把船底卸下来，换上新的。