来自古英语 rima,边沿，边界，河岩，海岸，来自 Proto-Germanic*remo,边沿，边界，可能来 自 PIE*rei,撕，刮，词源同 rive,rift.后词义通用化。

1. Far up the west rim of the canyon, a coyote yipped twice.

远处峡谷的西缘，一只丛林狼嚎叫了两声。

2. She sipped from her coffee mug, watching him over the rim.

她端着咖啡杯小口地喝着，目光越过杯沿注视着他。

3. I prised off the metal rim surrounding one of the dials.

我把其中一个刻度盘的金属边撬开了。

4. There's a hairline crack in the rim of that jar.

那只罐子的口沿有条极细的裂缝。

5. He looked at them over the rim of his glass.

他从杯口的上方看着他们。