surplus基本解释
n,[数]剩余；[贸易]顺差；[会计]盈余；[电子][经]过剩,同近
Any surplus can be trimmed away..多出来的部分可以修剪掉。
过剩，剩余（物资）英释nnan amount of something that is more than what is needed or used
trade surplus,贸易顺差；贸易盈余.短语
