supplementary income

• 附加收入

supplementary income的用法和样例：

例句

1. The only way that we get any additional income at all is to come up with a better version of that operating system that they might want to purchase.
   我们全然拿任何的附加收入的唯一方法要提出一个比较好的版本正在操作他们可能想要购买的系统那。