rim
noun [ C ] uk/rɪm/ us/rɪm/
（圆形物的）外缘，边缘
the outer, often curved or circular, edge of something
The rim of the cup was chipped and broken. 杯口上碰出了裂纹，碎了。
My reading glasses have wire rims. 我的阅读用放大镜镶着金属丝边。
rim
verb [ T ] uk/rɪm/ us/rɪm/ -mm-
环绕（某物的边缘）;形成…的边沿;给…镶边
to be round or along the edge of something
The martini glass was rimmed with sugar. 马天尼杯口抹了一圈糖。