investment,expense,cost,payment这四个单词的区别是什么?用法各自有什么特点?

investment,expense,cost,payment这四个单词的区别是什么?用法各自有什么特点? investment 把句子合并成定语从句a. Our client ensure us this expense is worth the investment for the return in benefits.b.They would receive the bennefits. expense 谐音, relocation expense “expense”是什么意思? Expense Code “expense”是什么意思 Hantec Investment expense of 和 expense for 区别? operating expense 包括那些俄expense operating expense-R&D expense 是什么? the _________of this city is bad for our healthA goods B expese C has been D electricityB expense C climate expense怎么读 expense cost的区别 at the expense expense可数吗 out-of-pocket expense