rudiment

英['ru:dimənt]美['ru:dimənt]

n. 基础,入门,雏形,退化器官

同：	[n.] abc, abcs, abc's, first principle

the elementary stages of any subject (usually plural)
- he mastered only the rudiments of geometry
[同] abc, abcs, abc's, first principle, first rudiment, alphabet, rudiment
the remains of a body part that was functional at an earlier stage of life
- Meckel's diverticulum is the rudiment of the embryonic yolk sac

开心词场背单词

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