階 的釋義 | Babel Free

釋義

1. stair; step
2. rank; degree; level; seniority; order of precedence
   figuratively
3. phase; stage (serially-ordered division of time, level of completion, etc.)
   figuratively
4. scale
5. order; degree (quantity signifying various concepts in mathematics, chiefly integer-valued)
6. the number of vertices in a graph
7. a surname

CEFR 等級