Directivity
[计] 指向性, 方向性
🗣️ 情景例句
Don't open the door if you don't know who it is.
如果有陌生人敲门不要开门。
You are healthier than I am.
你比我健康。
You're perfectly welcome to inspect the winning bid.
我们很欢迎你来查阅得标者。