a fence made of metal bars that go straight upwards; one of these bars 金屬圍欄;金屬欄杆 iron/metal railings 鐵/金屬欄杆 I chained my bike to the park railings. 我用鏈子把自行車鎖在公園的圍欄上了。 She leaned out over the railing. 她靠在欄杆上探出身去。
Oxford Collocations DictionaryRailing is used after these nouns:- metal