Censual
a. census的變形
? 同義詞
??? 情景例句
Good morning, Ellen.
早安， Ellen。
Whatever man has done man may do.
天下無難事。
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(fā)現(xiàn)，就可以探究一下聲音在什么情況下有絕對的實(shí)用價(jià)值。