| 词组 | ground |
| 释义 | ground [grounded, grounded, grounding] be grounded in be grounded in sth to have a thorough basic knowledge of something you have been taught: be well grounded in ▪ In those days, he said, students were well grounded in spelling. be grounded in/on be grounded in/on sth to be based on something: ▪ All these beliefs and attitudes are grounded in experience. ▪ The education reforms were grounded on a concern with the quality of teaching. ground out ground out AmE to be out of a baseball game because you hit the ball on the ground and a player from the other team throws it to the base before you get there: ▪ Erikson eventually grounded out, and the Braves didn't score any more runs that inning. |
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