C1 [ 不可數(shù)或單數(shù)名詞：沒有複數(shù)形式的名詞 ] a type of heavyoil used as fuel 柴油 a diesel engine 柴油發(fā)動機(jī) My new carruns on (= uses) diesel. 我的新汽車用柴油。 [ 可數(shù)名詞：有複數(shù)形式的名詞 ] any vehicle , especially a train , that has a diesel engine （尤指火車的）內(nèi)燃機(jī)；柴油車 返回 diesel