短語(yǔ)詞組短語(yǔ)long sleeper buried track 長(zhǎng)枕埋入式軌道long -distance sleeper bus 長(zhǎng)途臥鋪客車long sleeper buried -type 長(zhǎng)枕埋入式Sleeper long 長(zhǎng)軌枕 返回 long sleeper