Acoustical shadow
[电] 声影
🧩 词语组成解析
a. 听觉的, 声学的
shadow
['ʃædo]
n. 阴影;影子;鬼，幽灵;隐蔽处;
vt. 投阴影于;使朦胧;跟踪，尾随;预示;
vi. 渐变;阴沉;
adj. 影子内阁的;阴影的;非正式的;
🗣️ 情景例句
He's the Dean of Admissions for the University of Michigan.
他是Michigan大学的新生注册主任。
Happy is he who knows his follies in his youth.
记得青年时所做的愚笨事的人是幸福的。
do in fact run out of energy in accordance with the second law of thermodynamics (whether the whole universe does so is a moot point at present).
也都会消耗完其能量（整个宇宙是否如此，目前尚有争论）。