Erkki
n. (Erkki)人名；(芬)埃爾基
??? 情景例句
What?
什么辦法？
She is sick of watching boxing.
她厭惡觀看拳擊。
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.
我們只要看一看蝙蝠回聲定位這一極不尋常的發現，就可以探究一下聲音在什么情況下有絕對的實用價值。