【上位】 a vehicle that moves on wheels and usually has a container for transporting things or people; "the oldest known wheeled vehicles were found in Sumer and Syria and date from around 3500 BC" 通常物や人を運ぶ入れ物を有する車輪で動く乗物。
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【下位】 a large house trailer that can be connected to utilities and can be parked in one place and used as permanent housing ユーティリティに接続でき、一箇所に駐車され、永久的な住宅として使用できる大きい移動住宅トレーラ。
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