COMB in ADJ-GRADED [usually ADJ n] (用于有用或珍贵物质的名称后构成形容词)表示“富含…的”,“盛产…的” -rich combines with the names of useful or valuable substances to form adjectives that describe something as containing a lot of a particular substance. (用于有用或珍贵物质的名称后构成形容词)表示“富含…的”,“盛产…的”