名詞 couchette:

1. a compartment on a European passenger train; contains 4 to 6 berths for sleeping

cou.chette

n.（名詞）
A compartment on a European passenger train equipped with four to six berths for sleeping.
臥鋪車廂：歐洲客列車的一種車廂，裝有四到六個睡覺用的鋪位
A sleeping berth in one of these compartments.
臥鋪：這些車廂中的一個睡覺鋪位

來源：
French [diminutive of] couche [bed]
法語 [] couche的小后綴 [床]
from Old French * see couch
源自 古法語 *參見 couch