chant

圣歌；赞美诗英释中释na regularly repeated tune, often with many words sung on one note, especially used for religious prayers

唱；诵扬英释中释vto repeat a word or phrase again and again

1 gregorian chant,格列高利圣咏（教皇格列高利一世采用，常无伴奏）

1 ...a Gregorian chant..…一首格列高利圣歌。