名词
中文翻译：Unknown
同义词：
['1. plumage', 'plumb', 'plumb down', 'plumb up', 'plumb in', "plumb out例句：1. The bird's plumage is strikingly different from its parent species.（这只鸟的羽毛与它的父母种截然不同。）2. The scientist used a plumb to measure the height of the building.（科学家用一根铅垂线来测量建筑物的高度。）3. The pilot was instructed to plumb down and land safely.（飞行员被指示用铅垂线下降并安全着陆。）"]
例句：
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1. plumage, plumb, plumb down, plumb up, plumb in, plumb out例句：1. The bird's plumage is strikingly different from its parent species.
这只鸟的羽毛与它的父母种截然不同。
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2. The scientist used a plumb to measure the height of the building.
科学家用一根铅垂线来测量建筑物的高度。
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3. The pilot was instructed to plumb down and land safely.
飞行员被指示用铅垂线下降并安全着陆。