Direction selectivity
[化] 方向选择性
🧩 词语组成解析
n. 选择性, 选择度\\n[化] 选择性
🗣️ 情景例句
and tell us all about it during lunch.
一面吃午餐 ，一面告诉我们一切。
Sit down.
坐下！
Oh, thank you! said Ann. Look at the nice paper. Can I open it now, or later?
“噢，谢谢你！”安说，“瞧这漂亮的纸。我现在开还是以后再开？”