Directivities
(directivity 的复数) [计] 指向性, 方向性
🗣️ 情景例句
A large number of American radio stations operate in the red.
许多美国电台亏损经营。
Fame like a river is narrowest at its source and broadest afar off.
名誉像条河，源头最狭窄，远处最宽阔。
There was no electricity in my dorm last night.
昨晚我宿舍没电。