Visional
a. 視力的, 虛幻的, 幻覺的, 幻影的
? 同義詞
??? 情景例句
Good-bye, and thanks for bringing Gemma in.
再見，謝謝你們把Gemma送來。
Sometimes the snow was so deep we could tunnel through it.
偶爾雪會積到可以造隧道那般的深度。
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。