Acoustic efficiency
[机] 声音效率
🧩 词语组成解析
acoustic
[ə'ku:stik]
adj. 听觉的;声学的;原声的;音响的;
🗣️ 情景例句
What's this?
这是什么？
Life without friend is death.
没有朋友的生活便等于死亡。
The settlers built railways across the plains and began to hunt even more bison.
殖民者在平原上修起了铁路，于是开始猎取更多的野牛。