Complementary factors
[经] 互补的生产要素
🧩 词语组成解析
complementary
['kɑmplə'mɛntri]
adj. 互补的;补充的，补足的;
com加强+ ple填满+ ment表名词 + ary...的 →complement填满=补充+ ary...的 → 补充的
n. 因素（factor的复数）
🗣️ 情景例句
Let's go into the kitchen,
我们到厨房去，
How do you spend your evenings?
夜生活你都是怎么过的？
and we have only to turn to that extraordinary discovery of echo-location in bats to see a case in which the voice plays a strictly utilitarian role.
我们只要看一看蝙蝠回声定位这一极不寻常的发现，就可以探究一下声音在什么情况下有绝对的实用价值。