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1.英语字母表的第 4 个字母the fourth letter of the English alphabet

3.（学业成绩）第四等，差the fourth highest mark/grade that a student can get for a piece of work, showing that it is not very good

1.〈旧〉便士,英国货币单位,用于1971年前

2.〈口〉(=do)

3.〈口,书〉(=would)

1.英语字母表中的第四个字母

2.(学生成绩)丁

3.罗马数字中的500

4.【乐】D音; D调

1.penny or pence, used in the system of money used in the UK before 1971

2.(=do)

3.(=would)

1.the fourth letter of the english alphabet

2.the fourth highest grade in a series, e.g. a below-average grade for academic work

3.the roman numeral for 500

4.[Music]the second note in the musical scale of C major