一列（十节车厢的）列车

a train(of ten coaches)

• uninformed
• uninhibited
• uninspired
• uninterested
• union
• unique
• unisex
• unison
• unit
• Unitarian
• unite
• unity
• universal
• universe
• unkempt
• unkind
• unknowing
• unknown
• unlearn
• unleash
• unleavened
• unless
• unlettered
• unlike
• unlikely