C 边，边缘the top edge of a cup, bowl, etc.，especially with regard to how full it is

　The glass was full to the brim.　玻璃杯中的液体已满到要溢出来了。
　You can wear the hat with the brim turned up or down.　你戴这顶帽子时可把帽边翻上去或翻下来。

 ♣ brim, brink, edge, margin, rim, verge
　参见brink条。

　vi.　注满be full to the brim

　Tears brimmed in her eyes.　她热泪盈眶。

 ♣ brim over　(v.+adv.)
　满得快溢出来　(of a cup, container, etc.) be so full of a liquid that it flows over the edge
　You've filled the glass too full;it's brimming over.　你把杯子倒得太满了，都快溢出来了。
 ♣ brim with　(v.+prep.)
　充满，洋溢　(of a cup, container, etc.) be so full of a liquid that it flows over the edge
　His eyes brimmed with tears.　他热泪盈眶。
　Her heart was brimming over with happiness.　她心中洋溢着幸福。