rim

1. N-COUNT The rim of a container such as a cup or glass is the edge that goes all the way around the top. (容器的) 上缘

She looked at him over the rim of her glass. 她沿玻璃杯口看着他。

2. N-COUNT The rim of a circular object is its outside edge. (圆形物体的) 外缘; 外框

...a round mirror with white metal rim. …一面有白色金属边框的圆镜子。