1
- 500 (formerly 480) sheets of paper令（纸张记数单位, 原为480张, 现为500张）。
1.1
- a large quantity of something, typically paper or writing on paper大量的东西（尤指纸或写在纸上的东西）：
reams of paper have been used to debate these questions.
为了对这些问题进行辩论已经使用了大量纸张。
词源
late Middle English: from Old French raime, based on Arabic rizma 'bundle'.
with obj.
1- widen (a bore or hole) with a special tool用特殊工具扩（枪膛, 孔）。
1.1
- widen a bore or hole in (a gun or other metal object) in such a way用特殊工具在（枪炮等金属物品）上扩膛（或孔）。
1.2
- N. Amer. clear out or remove (material) from something〈北美〉清除, 去掉（材料）。
1.3
- N. Amer. vulgar slang have anal intercourse with (someone)〈北美, 粗俚〉对…行肛淫。
1.4
- N. Amer. informal rebuke someone fiercely〈北美, 非正式〉责骂：
the agent was reaming him out for walking away from the deal.
代理商因他退出交易而在责骂他。
短语
ream someone's ass（或butt）
- N. Amer. vulgar slang criticize or rebuke someone〈北美, 粗俚〉批评, 指责; 责骂。
词源
early 19th cent.: of unknown origin.