Multiplicative identity
[计] 乘法单位
🧩 词语组成解析
a. 倍增的\\n[计] 乘法的
identity
[ai'dentiti]
n. 身份;[逻]同一性;个性;[数]恒等（式）;
🗣️ 情景例句
How do I do that?
我该办什么手续呢？
Constant dropping wears away a stone.
滴水穿石。
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。