Directivity
[計(jì)] 指向性, 方向性
??? 情景例句
We always whispered when Michelle was born.
當(dāng)Michelle出生的時(shí)候， 我們總是壓低嗓門說(shuō)話。
Rose, let me introduce my friend to you.
羅斯，讓我介紹一下我的朋友。
Fortunately people want to come and hear me play, but I am getting very tired of travelling.
幸運(yùn)的是，人們都想來(lái)聽(tīng)我演奏，但是我對(duì)旅行感到厭倦了。